Merge pull request #7980 from kamilikamil/request-body-budget

Bound request body memory held by concurrent HTTP requests

DESIGN.md

@@ -36,7 +36,7 @@ It also specifies a `WorkflowLoader` interface that is used during workflow load
 
 ```go
 type WorkflowLoader interface {
-	GetTemplatePathsByTags(tags []string) []string
+	GetTemplatePathsByTags(tags []string, noValidate bool) []string
 	GetTemplatePaths(templatesList []string, noValidate bool) []string
 }
 ```

README.md

@@ -145,12 +145,12 @@ TARGET:
    -eh, -exclude-hosts string[]  hosts to exclude to scan from the input list (ip, cidr, hostname)
    -resume string                resume scan from and save to specified file (clustering will be disabled)
    -sa, -scan-all-ips            scan all the IP's associated with dns record
-   -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
+   -iv, -ip-version string[]     IP version to scan of hostname (4,6); default uses dialer fallback, -sa scans all addresses
    -dun, -disable-url-normalization  keep targets exactly as supplied instead of collapsing urls that address the same resource
    -mup, -max-urls-per-pattern int   scan at most this many urls sharing one structural shape, e.g. /user/1 and /user/2 (0 to scan all)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -177,7 +177,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -221,6 +221,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file
@@ -255,6 +256,7 @@ CONFIGURATIONS:
    -rsr, -response-size-read int         max response size to read in bytes
    -rss, -response-size-save int         max response size to read in bytes (default 1048576)
    -rqss, -request-size-save int         max request body size to save in bytes (0 to save the whole body) (default 32768)
+   -mrbi, -max-request-body-inflight int max request body bytes held by in-flight http requests; requests with bodies of 1MB or more queue past it (0 disables)
    -reset                                reset removes all nuclei configuration and data files (including nuclei-templates)
    -tlsi, -tls-impersonate               enable experimental client hello (ja3) tls randomization
    -hae, -http-api-endpoint string       experimental http api endpoint
@@ -326,6 +328,7 @@ OPTIMIZATIONS:
    -nh, -no-httpx                   disable httpx probing for non-url input
    -preflight-portscan              run preflight resolve + TCP portscan and filter targets before scanning (disabled by default)
    -no-stdin                        disable stdin processing
+   -ac, -auto-calibrate             drop HTTP matches on a host's catch-all page (answers missing paths with 2xx/3xx)
 
 HEADLESS:
    -headless                        enable templates that require headless browser support (root user on Linux will disable sandbox)

README_CN.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_ES.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_FA.md

@@ -165,7 +165,7 @@ TARGET:
    -mup, -max-urls-per-pattern int   scan at most this many urls sharing one structural shape, e.g. /user/1 and /user/2 (0 to scan all)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -192,7 +192,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -236,6 +236,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_ID.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_JP.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_KR.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_PT-BR.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

README_TR.md

@@ -148,7 +148,7 @@ TARGET:
    -iv, -ip-version string[]     IP version to scan of hostname (4,6) - (default 4)
 
 TARGET-FORMAT:
-   -im, -input-mode string        mode of input file (list, burp, jsonl, yaml, openapi, swagger, http) (default "list")
+   -im, -input-mode string        mode of input file (list, burp, har, jsonl, yaml, openapi, swagger, http) (default "list")
    -ro, -required-only            use only required fields in input format when generating requests
    -sfv, -skip-format-validation  skip format validation (like missing vars) when parsing input file
    -vtt, -vars-text-templating    enable text templating for vars in input file (only for yaml input mode)
@@ -175,7 +175,7 @@ TEMPLATES:
    -egm, -enable-global-matchers          enable loading global matchers templates
    -file                                  enable loading file templates
    -llm                                   enable llm matchers and extractors (semantic matching)
-   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter) (default "openai")
+   -llm-provider string                   llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev) (default "openai")
    -llm-base-url string                   openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)
    -llm-model string                      model used for semantic matching
    -llm-timeout int                       time in seconds to wait for a single llm call (default 30)
@@ -219,6 +219,7 @@ OUTPUT:
    -jle, -jsonl-export string    file to export results in JSONL(ine) format
    -pe, -pdf-export string       file to export results in PDF format
    -rd, -redact string[]         redact given list of keys from query parameter, request header and body
+   -nrd, -no-redact              disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted
 
 CONFIGURATIONS:
    -config string                        path to the nuclei configuration file

SECURITY_CONTEXT.md

@@ -1,255 +1,120 @@
-<!-- Generated by securitycontext.dev. Source HEAD: 3e1e0e81f091c7817bbf7af64bb8eec6e8c2bac1. -->
+<!-- Generated by securitycontext.dev. Source HEAD: df57ae6d2955864fd92a1bd2565fe9e4e9a7592b. -->
 # Security Context: projectdiscovery/nuclei @ dev
 
 > Reference context for editing projectdiscovery/nuclei. Before changing any component below, **preserve the listed guards and do not reintroduce these fixed issues**. Each fingerprint is a regression check, and each shared attack surface is a guard that must keep holding on every path.
 
-_Generated 2026-09-01 16:22 UTC by secc_
-
-_Analyzed commit: 3e1e0e81f091c7817bbf7af64bb8eec6e8c2bac1_
-
-**Remediation coverage: 56.7%**
-_17 of 30 historical fixes have no remaining unguarded variant; 368 open remediation leads to verify. Measures fix consistency, not a vulnerability verdict._
-
-- Commits analyzed: **4814**
-- Commits flagged for review: **235**
-- Confirmed historical security fixes: **32**
-- Known published CVEs: **0**
-
-## Summary
-
-Nuclei's historical security posture is dominated by sandbox escapes and code execution via unsigned or unverified templates, with recurring SSRF, path traversal, and auth bypass issues across JS libraries, loaders, and workflow paths. The most critical theme is inconsistent enforcement of signature verification and local-file-access (-lfa) guards across direct, workflow, DAST, and JS-sandbox entry points, enabling variant attacks. A second theme is network policy (host allowlist) gaps in LDAP dialing and proxy handling. The security context also includes dependency upgrades (Alpine, go-git) and output file permission hardening, but the highest-value focus is on template trust boundaries and sandbox enforcement parity.
+_Analyzed [df57ae6d29][c-df57ae6d29] on `dev` · 5174 commits, 548 security-relevant examined · generated 2026-11-02_
 
 ## Recurring Security Patterns
 
-**15.6% of classified fixes repeat a previously fixed pattern** (5 recurring, 27 first-seen). A recurring pattern means this repository fixed a similar issue before — not that the code is currently vulnerable.
-
-- **Code Execution:** [1c440e755a](https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645) → [9de96e4dda](https://github.com/projectdiscovery/nuclei/commit/9de96e4dda5a03da963b9ae6582f03ea55791a76) — matched on `class:code execution`, `component:pkg/catalog/loader/loader.go`
-- **Code Execution via Unsigned Template:** [fa56800fcc](https://github.com/projectdiscovery/nuclei/commit/fa56800fcca3c8c8fe8e8dec28584210ca1527de) → [fac0b7196d](https://github.com/projectdiscovery/nuclei/commit/fac0b7196d2fbca56c8af8ff8e1899c111041a37) — matched on `class:code execution via unsigned template`, `CWE-347`, `sink:loadtemplates`
-- **SSRF:** [a167e6c57b](https://github.com/projectdiscovery/nuclei/commit/a167e6c57b80f5dc7be231231b62d7c594ee2770) → [9def9af7e3](https://github.com/projectdiscovery/nuclei/commit/9def9af7e3f7ebcf5cd561c37b623b9999ee7572) — matched on `class:ssrf`, `CWE-918`, `component:pkg/js/libs/ldap/ldap.go`
-- **Dependency Vulnerability:** [d93b4a01df](https://github.com/projectdiscovery/nuclei/commit/d93b4a01df9c218a36dd2fccfb1c2c1f96b181fe) → [fcd5c6b111](https://github.com/projectdiscovery/nuclei/commit/fcd5c6b111ddcb746525f88b7d0bf4b4abbc2529) — matched on `class:dependency vulnerability`, `CWE-1104`, `component:dockerfile`
-- **Sandbox Escape:** [96049a32fa](https://github.com/projectdiscovery/nuclei/commit/96049a32fa70aef0483d4180d386a57b3c2d973a) → [cf2a98b03d](https://github.com/projectdiscovery/nuclei/commit/cf2a98b03d76327c20fb0183b7f1c849eb692c91) — matched on `class:sandbox escape`, `CWE-284`, `component:v2/internal/runner/processor.go`, `sink:stdlib allmodulenames`, `sink:stdlib getmodulemap`
+**7.1% of classified fixes repeat a previously fixed pattern** (1 recurring, 13 first-seen). A recurring pattern means this repository fixed a similar issue before — not that the code is currently vulnerable.
 
 ## Top Risks
 
-### 1. Sandbox Escape: `pkg/js/compiler/pool.go, v2/pkg/protocols/javascript/js.go, v2/pkg/protocols/headless/engine/engine.go, v2/internal/runner/processor.go` (high)
+Components with the strongest concentration of past fixes for one class.
 
-Multiple sandbox escapes across JS require(), eval/ReadFile, headless browser flags, and tengo imports, indicating weak default sandbox boundaries that require consistent -lfa and safe-module enforcement.
-
-Evidence: 6f2ade6a9b427c284c15a43445f9c7f055e60e5d, c35162c8ef061a96dd74b54c8f022c1a41cf5833, df55f7a2eb591a7949b5c66a9c54db54aa28f450, cf2a98b03d76327c20fb0183b7f1c849eb692c91, 96049a32fa70aef0483d4180d386a57b3c2d973a
-
-### 2. Code Execution via Unsigned Template: `pkg/catalog/loader/loader.go, pkg/templates/workflows.go, pkg/templates/templates.go` (critical)
-
-Unsigned templates can execute code through direct loading, workflows, and DAST branches; signature verification was bypassed via cache poisoning and missing guards on specific paths.
-
-Evidence: 9de96e4dda5a03da963b9ae6582f03ea55791a76, 1c440e755a97471c56fb0276ee8a8c4132974645, fac0b7196d2fbca56c8af8ff8e1899c111041a37, e86f38299765b82ad724fdb701557e0eaff3884d, fa56800fcca3c8c8fe8e8dec28584210ca1527de
-
-### 3. Auth Bypass: `pkg/templates/compile.go, pkg/templates/signer/tmpl_signer.go, pkg/catalog/loader/loader.go, pkg/protocols/http/request.go` (high)
-
-Signature verification can be bypassed via cached metadata, improper signature extraction, or missing checks on specific load paths, and cookie jar bypass via disabled cookie handling.
-
-Evidence: 4534e9cb3034ebe5cc7b0cecabe399b6fb9ce0e4, 0da993afe6d41b4b1b814e8fad23a2acba13c60a, 9bd4db3f74aedd067af568df4f9198a8a090f68b, a976ca8d3f6a18c9ca746c8ce73f28fdcd518642
-
-### 4. SSRF: `pkg/js/libs/ldap/ldap.go, v2/internal/runner/proxy.go` (high)
-
-SSRF via LDAP dialing to internal hosts and via proxy configuration; host allowlist checks were missing or applied to the wrong target (domain vs controller).
-
-Evidence: 9def9af7e3f7ebcf5cd561c37b623b9999ee7572, a167e6c57b80f5dc7be231231b62d7c594ee2770, 0e46d3e0410f89e4af41099f5cd38fa7f54ae54f
-
-### 5. Path Traversal: `pkg/catalog/config/nucleiconfig.go, v2/internal/runner/update.go, v2/pkg/protocols/common/protocolstate/headless.go` (high)
-
-Path traversal via lexical prefix checks, zip-slip in template extraction, and file:// scheme in headless mode; canonicalization and containment checks are required.
-
-Evidence: 20cbf0bd73893c1270582c9778b6b26a5cb11206, f9c214a66f37a00fc29fe64232b690e6285ec59c, d3928e080d819f25306bfbaecc399f03516db5aa
-
-### 6. Code Execution: `pkg/catalog/loader/loader.go, pkg/templates/workflows.go` (high)
-
-Code execution via cache poisoning and unverified code templates in workflows; requires -code flag and verified templates.
-
-Evidence: 9de96e4dda5a03da963b9ae6582f03ea55791a76, e86f38299765b82ad724fdb701557e0eaff3884d
-
-## Shared Attack Surfaces
-
-Capabilities guarded by more than one past fix on different code paths. A guard enforced on one entry point is often missing on a sibling; verify each alternate path before assuming it's covered.
-
-### 1. Template signature verification and unsigned-template opt-in enforcement across all load paths
-
-- Guard that should hold everywhere: signature verification (template.Verified, Verify), DisableUnsignedTemplates flag, -code flag for code templates, cache invalidation on verification status/fingerprint/digest
-- Entry points: `pkg/catalog/loader/loader.go (LoadTemplatesWithTags, DAST branch)`, `pkg/templates/workflows.go (loadTemplates, workflowExecutor)`, `pkg/templates/templates.go (loadTemplates)`, `pkg/templates/compile.go (template.Verified)`, `pkg/templates/signer/tmpl_signer.go (Verify)`
-- Check: Inspect the DAST and workflow sub-loaders: they must enforce the same DisableUnsignedTemplates and -code checks as the direct loader, and must not rely on cached verification results without re-checking signatures.
-- Evidence: 9de96e4dda5a03da963b9ae6582f03ea55791a76, 1c440e755a97471c56fb0276ee8a8c4132974645, fac0b7196d2fbca56c8af8ff8e1899c111041a37, e86f38299765b82ad724fdb701557e0eaff3884d, fa56800fcca3c8c8fe8e8dec28584210ca1527de, 4534e9cb3034ebe5cc7b0cecabe399b6fb9ce0e4, 0da993afe6d41b4b1b814e8fad23a2acba13c60a, 9bd4db3f74aedd067af568df4f9198a8a090f68b
-
-### 2. Local file access (read/write) outside the sandbox, gated by -lfa flag
-
-- Guard that should hold everywhere: -lfa flag enforcement, path canonicalization and containment (sandbox directory), file:// scheme blocking, allowAllFiles stripping, require() registry rebuild
-- Entry points: `pkg/js/libs/krbforge/krbforge.go (CreateTicket)`, `pkg/js/libs/mysql/mysql_private.go (sql.Open)`, `pkg/js/compiler/pool.go (require)`, `v2/pkg/protocols/javascript/js.go (ReadFile, eval)`, `v2/pkg/protocols/common/protocolstate/headless.go (file:)`, `v2/pkg/protocols/common/generators/load.go (loadPayloadsFromFile)`
-- Check: Verify that every JS library and protocol helper (krbforge, mysql, require, headless file://, payload loaders) enforces the -lfa flag and path containment; a sibling path that skips the -lfa check is a sandbox escape.
-- Evidence: 3a8b65cb45f121fcdf418f60e5177ed9f250c122, 9611926a9a1ca99e8ed554d1b26fbeff60e06368, 6f2ade6a9b427c284c15a43445f9c7f055e60e5d, c35162c8ef061a96dd74b54c8f022c1a41cf5833, d3928e080d819f25306bfbaecc399f03516db5aa, e7fb40a41308f6c41267e858d1781eb67f7e0572
-
-### 3. Network policy (host allowlist) enforcement before outbound connections
-
-- Guard that should hold everywhere: IsHostAllowed check on the actual target host (controller, not domain), proxy validation and connectivity check, ProxyInternal gate for HTTP_PROXY env
-- Entry points: `pkg/js/libs/ldap/ldap.go (Dial, newLdapSession)`, `v2/internal/runner/proxy.go (loadProxyServers, os.Setenv HTTP_PROXY)`
-- Check: Inspect other dialing paths (e.g., HTTP, headless) to ensure they apply the same host allowlist check on the resolved IP/host, not just a user-supplied domain, and that proxy settings cannot redirect traffic to internal hosts.
-- Evidence: 9def9af7e3f7ebcf5cd561c37b623b9999ee7572, a167e6c57b80f5dc7be231231b62d7c594ee2770, 0e46d3e0410f89e4af41099f5cd38fa7f54ae54f, 3f5c055aca1499642caf4f40e8cf55ad32bd4da9
-
-### 4. Path traversal in file extraction and template path trust boundaries
-
-- Guard that should hold everywhere: canonical path containment check (filepath.Rel, prefix), zip-slip validation against template directory, sandbox path prefix validation
-- Entry points: `pkg/catalog/config/nucleiconfig.go (IsCustomTemplate)`, `v2/internal/runner/update.go (os.OpenFile)`, `v2/pkg/protocols/common/generators/load.go (loadPayloadsFromFile)`
-- Check: Audit all file-write and file-read paths that accept template-controlled paths (e.g., template extraction, payload loading) to ensure they use canonical containment, not lexical prefix checks, and apply the same sandbox directory restriction.
-- Evidence: 20cbf0bd73893c1270582c9778b6b26a5cb11206, f9c214a66f37a00fc29fe64232b690e6285ec59c, e7fb40a41308f6c41267e858d1781eb67f7e0572
-
-## Historical Vulnerability Classes
-
-| Class | Count |
-|---|---|
-| Sandbox Escape | 7 |
-| Auth Bypass | 4 |
-| Code Execution | 3 |
-| Dependency Vulnerability | 3 |
-| Path Traversal | 3 |
-| SSRF | 3 |
-| Code Execution via Unsigned Template | 2 |
-| Arbitrary File Read | 1 |
-| Cryptographic Weakness | 1 |
-| Deserialization of Untrusted Data | 1 |
-| Information Disclosure | 1 |
-| Insecure File Permissions | 1 |
-| Race Condition | 1 |
-| Security Misconfiguration | 1 |
+| # | Class | Component | Severity | Fixes | Evidence |
+|---|---|---|---|---|---|
+| 1 | SSRF | `pkg/protocols/common/protocolstate/headless.go` | high | 2 | [d43c1f547f][c-d43c1f547f], [d9dabbb4a1][c-d9dabbb4a1] |
+| 2 | Arbitrary File Access | `v2/pkg/protocols/common/generators/load.go` | high | 0 (1 component gone, not counted) | [e5154d362a][c-e5154d362a] |
+| 3 | Arbitrary File Access | `pkg/js/libs/mysql/mysql.go` | high | 1 | [634cecbb28][c-634cecbb28] |
+| 4 | Code Execution | `pkg/fuzz/execute.go` | high | 1 | [ccbfb12bd0][c-ccbfb12bd0] |
+| 5 | Code Execution | `pkg/protocols/common/expressions/expressions.go` | high | 1 | [d221732016][c-d221732016] |
+| 6 | Information Disclosure | `internal/httpapi/apiendpoint.go` | high | 1 | [a20aa26024][c-a20aa26024] |
 
 ## Fixed-Issue Fingerprints
 
-These are real security fixes mined from git history. Use them as regression checks.
+Real security fixes mined from git history; use them as regression checks. `verified` fixes are linked to a published advisory, `inferred` fixes were confirmed from the diff evidence alone. Each is identified by its short commit SHA, which the variant-leads report uses to reference it back to this history.
 
-- **Auth Bypass** (high) [CWE-287]: Honors disable-cookie by preventing the shared cookie jar from being applied when cookie handling is disabled, closing a path where cookies could be reused across requests.
-  - sink: `SetCookieJar(input.CookieJar)`
-  - fix: Adds !request.DisableCookie check before applying shared cookie jar
-  - commit: https://github.com/projectdiscovery/nuclei/commit/a976ca8d3f6a18c9ca746c8ce73f28fdcd518642 (2026-08-25)
-- **Code Execution** (high) [CWE-347]: This commit fixes a cache poisoning vulnerability where unsigned templates could bypass signature verification and execute malicious code during compilation or request execution.
-  - sink: `template compilation and execution of JavaScript`
-  - fix: cache invalidation based on verification status, verifier fingerprint, and content digest
-  - commit: https://github.com/projectdiscovery/nuclei/commit/9de96e4dda5a03da963b9ae6582f03ea55791a76 (2026-08-04)
-- **Code Execution via Unsigned Template** (high) [CWE-347]: Enforces signature verification on JavaScript templates, preventing execution of unsigned templates that could lead to arbitrary code execution.
-  - sink: `loading unsigned javascript templates into execution paths`
-  - fix: Require signature verification for javascript templates in direct loading and workflows when signing is enforced
-  - commit: https://github.com/projectdiscovery/nuclei/commit/fac0b7196d2fbca56c8af8ff8e1899c111041a37 (2026-07-03)
-- **Sandbox Escape** (high) [CWE-22]: Enforces nuclei's local file access policy on krbforge output paths, preventing arbitrary file writes outside the sandbox.
-  - sink: `gpkrb.CreateTicket(cfg) with cfg.OutputFile`
-  - fix: Path normalization into sandbox and denial of outside paths unless -lfa
-  - commit: https://github.com/projectdiscovery/nuclei/commit/3a8b65cb45f121fcdf418f60e5177ed9f250c122 (2026-06-24)
-- **SSRF** (high) [CWE-918]: Adds network policy host allowlist checks before LDAP dialing, preventing SSRF to restricted internal hosts.
-  - sink: `dialers.Fastdialer.Dial`
-  - fix: host allowlist check via IsHostAllowed before dialing
-  - commit: https://github.com/projectdiscovery/nuclei/commit/9def9af7e3f7ebcf5cd561c37b623b9999ee7572 (2026-06-24)
-- **Arbitrary File Read** (high) [CWE-22]: Gates MySQL's allowAllFiles option behind the -lfa flag, preventing arbitrary local file reads via LOAD DATA LOCAL INFILE.
-  - sink: `sql.Open("mysql", dsn) with AllowAllFiles=true`
-  - fix: DSN sandbox that strips allowAllFiles unless -lfa is set
-  - commit: https://github.com/projectdiscovery/nuclei/commit/9611926a9a1ca99e8ed554d1b26fbeff60e06368 (2026-06-19)
-- **Code Execution** (critical) [CWE-94]: Moves the unsigned code-template guard ahead of the DAST branch, preventing unsigned code templates from being loaded and executed under DAST, which previously bypassed the signature check.
-  - sink: `Template loading and execution`
-  - fix: Hoisting unsigned code-template guard before DAST branch to ensure it applies on all load paths
-  - commit: https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645 (2026-06-19)
-- **Path Traversal** (high) [CWE-22]: This commit replaces lexical prefix checks with canonical path containment checks across multiple filesystem trust boundaries, preventing path traversal where sibling paths were incorrectly treated as trusted.
-  - sink: `IsCustomTemplate`
-  - fix: path canonicalization and containment check
-  - commit: https://github.com/projectdiscovery/nuclei/commit/20cbf0bd73893c1270582c9778b6b26a5cb11206 (2026-06-04)
-- **Information Disclosure** (medium) [CWE-200]: This commit fixes a data leakage issue in workflows where sibling state could leak across concurrent executions, and race requests ignored dynamic values, by syncing context and cloning inputs.
-  - sink: `syncWorkflowInputToTemplateCtx`
-  - fix: context synchronization and input cloning
-  - commit: https://github.com/projectdiscovery/nuclei/commit/805bcfe76f3629dbe71021795d4ce865406c1555 (2026-05-08)
-- **Sandbox Escape** (high) [CWE-284]: Fixes sandbox escape where require() bypassed local file access restrictions and reused privileged module cache across executions.
-  - sink: `require() using default host filesystem loader`
-  - fix: Rebuild require registry per execution and enforce allow-local-file-access sandbox rules
-  - commit: https://github.com/projectdiscovery/nuclei/commit/6f2ade6a9b427c284c15a43445f9c7f055e60e5d (2026-04-10)
-- **Cryptographic Weakness** (medium) [CWE-338]: Replaces predictable math/rand PRNG with cryptographically secure crypto/rand in JS helper functions.
-  - sink: `rand.Intn(255) / rand.Int63()`
-  - fix: Replace predictable math/rand with crypto/rand
-  - commit: https://github.com/projectdiscovery/nuclei/commit/44ef9ce34ffcfdfca3a96626abc73d99dd0e83ab (2026-03-15)
-- **Auth Bypass** (high) [CWE-347]: Caching signature verification results without cryptographic re-check allows a metadata index compromise to bypass template signature verification.
-  - sink: `template.Verified, template.TemplateVerifier`
-  - fix: cached verification data reuse
-  - commit: https://github.com/projectdiscovery/nuclei/commit/4534e9cb3034ebe5cc7b0cecabe399b6fb9ce0e4 (2026-01-21)
-- **Race Condition** (medium) [CWE-362]: Fixes a race condition in workflow execution caused by shared context callbacks, which could lead to data corruption or crashes; the primary impact is reliability, not a direct security breach.
-  - sink: `shared context callbacks in workflow execution`
-  - fix: fix race condition by making workflow execution sequential
-  - commit: https://github.com/projectdiscovery/nuclei/commit/24d1f58682027e23cb21a299a170abd2bdf20dc2 (2025-12-05)
-- **Auth Bypass** (high) [CWE-347]: Fixes template signature verification by centralizing signature extraction and requiring the signature to be at the end of the template, preventing bypass.
-  - sink: `Verify`
-  - fix: signature extraction and verification
-  - commit: https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a (2024-08-19)
-- **Dependency Vulnerability** (medium) [CWE-1104]: Upgrades Alpine base image from 3.18.5 to 3.18.6 to fix known security vulnerabilities in bundled packages.
-  - sink: `FROM alpine:3.18.5`
-  - fix: Upgrade base image to patched version
-  - commit: https://github.com/projectdiscovery/nuclei/commit/fcd5c6b111ddcb746525f88b7d0bf4b4abbc2529 (2024-03-15)
-- **Dependency Vulnerability** (medium) [CWE-1104]: Upgrades Alpine base image from 3.18.2 to 3.18.5 to fix known security vulnerabilities in bundled packages.
-  - sink: `FROM alpine:3.18.2`
-  - fix: Upgrade base image to patched version
-  - commit: https://github.com/projectdiscovery/nuclei/commit/d93b4a01df9c218a36dd2fccfb1c2c1f96b181fe (2024-03-15)
-- **Dependency Vulnerability** (high) [CWE-1035]: Updates go-git to fix known vulnerabilities (CVE-2023-49569, CVE-2023-49568), which could be exploited when processing untrusted git data.
-  - sink: `go-git library usage`
-  - fix: dependency upgrade to patched version
-  - commit: https://github.com/projectdiscovery/nuclei/commit/1700cdf4e23128a358066364062246b58c1c013f (2024-03-14)
-- **Code Execution via Unsigned Template** (high) [CWE-347]: Introduces a flag to disable unsigned templates, preventing execution of unverified templates that could lead to arbitrary code execution.
-  - sink: `loading unsigned templates when -dut flag is set`
-  - fix: Adds -disable-unsigned-templates flag to skip unsigned templates and report them separately
-  - commit: https://github.com/projectdiscovery/nuclei/commit/fa56800fcca3c8c8fe8e8dec28584210ca1527de (2024-03-14)
-- **Auth Bypass** (medium) [CWE-347]: This commit introduces a flag to skip unsigned templates, closing a path where an attacker could execute untrusted templates by bypassing signature verification.
-  - sink: `parsed.Verified`
-  - fix: skip unverified templates when DisableUnsignedTemplates is set
-  - commit: https://github.com/projectdiscovery/nuclei/commit/9bd4db3f74aedd067af568df4f9198a8a090f68b (2024-03-10)
-- **Code Execution** (high) [CWE-94]: Prevents execution of unverified code templates in workflows, mitigating code execution risk.
-  - sink: `template.RequestsCode`
-  - fix: require -code flag and verified templates for code templates in workflows
-  - commit: https://github.com/projectdiscovery/nuclei/commit/e86f38299765b82ad724fdb701557e0eaff3884d (2024-03-01)
-- **SSRF** (high) [CWE-918]: Fixes SSRF by validating the actual LDAP controller host against the network policy instead of the domain name.
-  - sink: `newLdapSession`
-  - fix: host allowlist check on controller instead of domain
-  - commit: https://github.com/projectdiscovery/nuclei/commit/a167e6c57b80f5dc7be231231b62d7c594ee2770 (2024-01-20)
-- **Sandbox Escape** (high) [CWE-94]: Disables eval and tightens file read validation in the JavaScript sandbox, preventing template-driven code execution and file access outside the sandbox.
-  - sink: `eval function and file read in sandbox mode`
-  - fix: Disable eval function and rewrite file validation in sandbox mode
-  - commit: https://github.com/projectdiscovery/nuclei/commit/c35162c8ef061a96dd74b54c8f022c1a41cf5833 (2023-10-13)
-- **Path Traversal** (high) [CWE-22]: Adds network policy and blocks file:// protocol in headless mode unless -lfa is set, preventing local file disclosure.
-  - sink: `file:// protocol access in headless browser`
-  - fix: Network policy validation and file:// scheme blocking when local file access is disabled
-  - commit: https://github.com/projectdiscovery/nuclei/commit/d3928e080d819f25306bfbaecc399f03516db5aa (2023-08-25)
-- **Deserialization of Untrusted Data** (medium) [CWE-502]: Fixes JSON deserialization by adding explicit UnmarshalJSON methods and correcting tags, preventing type confusion and potential logic bypasses.
-  - sink: `UnmarshalJSON on user-controlled fields like Type and Name`
-  - fix: Adds proper UnmarshalJSON implementations and corrects json tags to prevent type confusion
-  - commit: https://github.com/projectdiscovery/nuclei/commit/85090b75317977bb9301444c9dfd8e4c2dba667a (2023-02-07)
-- **Sandbox Escape** (medium) [CWE-22]: The commit adds sandbox mode that restricts payload file paths to the template directory, preventing arbitrary file reads when sandbox is enabled.
-  - sink: `loadPayloadsFromFile`
-  - fix: path prefix validation against template directory and template path directory
-  - commit: https://github.com/projectdiscovery/nuclei/commit/e7fb40a41308f6c41267e858d1781eb67f7e0572 (2022-11-16)
-- **Insecure File Permissions** (low) [CWE-732]: Fixes overly permissive file permissions on debug output files by changing from os.ModePerm (0777) to 0644.
-  - sink: `os.OpenFile`
-  - fix: restrict file mode to 0644
-  - commit: https://github.com/projectdiscovery/nuclei/commit/af4854f90de728bb08689d5cae3dec4acfdb6b9a (2022-06-20)
-- **Security Misconfiguration** (medium) [CWE-16]: Prevents setting HTTP_PROXY environment variable unless explicitly enabled, avoiding potential proxy hijacking.
-  - sink: `os.Setenv(types.HTTP_PROXY_ENV, proxyURL.String())`
-  - fix: Added check for options.ProxyInternal before setting HTTP_PROXY environment variable
-  - commit: https://github.com/projectdiscovery/nuclei/commit/3f5c055aca1499642caf4f40e8cf55ad32bd4da9 (2022-03-09)
-- **Sandbox Escape** (high) [CWE-250]: The commit restricts the use of the --no-sandbox flag to Linux root users, preventing sandbox escape vulnerabilities in other environments.
-  - sink: `NoSandbox(true)`
-  - fix: Conditionally disable sandbox only on Linux as root
-  - commit: https://github.com/projectdiscovery/nuclei/commit/df55f7a2eb591a7949b5c66a9c54db54aa28f450 (2021-12-05)
-- **Path Traversal** (high) [CWE-22]: This commit fixes a zip-slip path traversal vulnerability by validating the extracted file path against the configured template directory.
-  - sink: `os.OpenFile`
-  - fix: path canonicalization and prefix check
-  - commit: https://github.com/projectdiscovery/nuclei/commit/f9c214a66f37a00fc29fe64232b690e6285ec59c (2021-11-25)
-- **SSRF** (high) [CWE-918]: Adds validation and connectivity checks for SOCKS5 proxies before launching a scan, preventing SSRF through proxy configuration.
-  - sink: `Proxy connection validation and loading`
-  - fix: Proxy server validation and connectivity check before scan launch
-  - commit: https://github.com/projectdiscovery/nuclei/commit/0e46d3e0410f89e4af41099f5cd38fa7f54ae54f (2021-11-10)
-- **Sandbox Escape** (high) [CWE-284]: This commit adds a sandbox flag that, when enabled, restricts the tengo scripting engine to safe modules, preventing sandbox escape and arbitrary command execution.
-  - sink: `stdlib.GetModuleMap(stdlib.AllModuleNames()...)`
-  - fix: Added sandbox flag to restrict imports to safe modules when sandbox is enabled
-  - commit: https://github.com/projectdiscovery/nuclei/commit/cf2a98b03d76327c20fb0183b7f1c849eb692c91 (2020-12-13)
-- **Sandbox Escape** (high) [CWE-284]: This commit restricts the tengo scripting engine to a safe module list, preventing sandbox escape and arbitrary command execution via workflow templates.
-  - sink: `stdlib.GetModuleMap(stdlib.AllModuleNames()...)`
-  - fix: Restricted tengo script imports to a safe module list
-  - commit: https://github.com/projectdiscovery/nuclei/commit/96049a32fa70aef0483d4180d386a57b3c2d973a (2020-12-13)
+**By component** (directories with the most fixes):
+
+- `pkg/protocols/common/protocolstate` — 2 fixes: SSRF (2)
+
+- [1c0f77d28e][c-1c0f77d28e] **fix(js/net): enforce network policy on proxied target in JS net dial** — SSRF, high [CWE-918] · inferred · 2026-10-18
+  `pkg/js/libs/net/net.go` · sink `dialHTTPProxy` · fix: input validation
+- [d43c1f547f][c-d43c1f547f] **fix(headless): canonicalize IPv4-mapped IPv6 literals and re-validate dial targets** — SSRF, high [CWE-918] · inferred · 2026-10-13
+  `pkg/protocols/common/protocolstate/headless.go` · sink `net.DialTimeout` · fix: canonicalization before validation
+- [d9dabbb4a1][c-d9dabbb4a1] **fix(headless): enforce network policy on ws and wss schemes (#7867)** — SSRF, high [CWE-918] · inferred · 2026-10-12
+  `pkg/protocols/common/protocolstate/headless.go` · sink `isValidHost` · fix: canonicalization before validation
+- [a20aa26024][c-a20aa26024] **Fix pprof/auth exposure on http-api-endpoint and harden file permissions** — Information Disclosure, high [CWE-200] · inferred · 2026-08-03
+  `internal/httpapi/apiendpoint.go` · sink `http.ListenAndServe` · fix: authentication verification
+- [fac0b7196d][c-fac0b7196d] **feat(templates): require signatures for javascript templates (#7514)** — Signature Verification Bypass, high [CWE-347] · verified (CVE-2026-76819, GHSA-vxg7-f2jj-jmqm) · 2026-07-03
+  `pkg/catalog/loader/loader.go` · sink `t.HasJavascriptRequest` · fix: cryptographic verification
+- [ccbfb12bd0][c-ccbfb12bd0] **refactor(protocols): template rendering boundary (#7499)** — Code Execution, high [CWE-94] · verified (CVE-2026-76805, GHSA-jpvm-9frm-hjcq) · 2026-06-30
+  `pkg/fuzz/execute.go` · sink `expressions.Evaluate` · fix: sandbox isolation
+- [3a8b65cb45][c-3a8b65cb45] **fix(js): reject unsandboxed ccache writes in krbforge (#7482)** — Sandbox Escape, high [CWE-693] · inferred · 2026-06-24
+  `pkg/js/libs/krbforge/krbforge.go` · sink `OutputFile` · fix: sandbox isolation
+- [68daef44a7][c-68daef44a7] **fix(js): escape dbname in lib/pq URL (#7479)** — SQL Injection, high [CWE-89] · inferred · 2026-06-23
+  `pkg/js/libs/postgres/postgres.go` · sink `fmt.Sprintf` (library call — the operation around it is the sink) · fix: context-aware output escaping
+- [634cecbb28][c-634cecbb28] **gate mysql allowAllFiles behind -lfa** — Arbitrary File Access, high [CWE-22] · verified (CVE-2026-76803, GHSA-xhmx-w2j4-rw3q) · 2026-06-19
+  `pkg/js/libs/mysql/mysql.go` · sink `sql.Open` · fix: sandbox isolation
+- [20cbf0bd73][c-20cbf0bd73] **refactor: use path-aware filesystem containment checks (#7420)** — Path Traversal, high [CWE-22] · inferred · 2026-06-04
+  `pkg/installer/template.go` · sink `filepath.Join` · fix: canonicalization before validation
+- [6f2ade6a9b][c-6f2ade6a9b] **fix(js): respect \`allow-local-file-access\` in \`require\` (#7332)** — Sandbox Escape, high [CWE-693] · inferred · 2026-04-10
+  `pkg/js/compiler/pool.go` · sink `require.DefaultSourceLoader` · fix: sandbox isolation
+- [d221732016][c-d221732016] **fix(expressions): only eval template-authored expressions (#7221)** — Code Execution, high [CWE-94] · verified (CVE-2026-76805, GHSA-jpvm-9frm-hjcq) · 2026-03-16
+  `pkg/protocols/common/expressions/expressions.go` · sink `FindExpressions` · fix: allowlist enforcement
+- [0da993afe6][c-0da993afe6] **Merge commit from fork** — Signature Verification Bypass, medium [CWE-347] · verified (CVE-2024-43405, GHSA-7h5p-mmpp-hgmm) · 2024-08-19
+  `pkg/templates/signer/tmpl_signer.go` · sink `os.ReadFile` · fix: cryptographic verification
+- [e5154d362a][c-e5154d362a] **fixing payload load (#3927)** — Arbitrary File Access, high [CWE-22] · verified (CVE-2023-37896, GHSA-2xx4-jj5v-6mff) · 2023-07-14
+  `v2/pkg/protocols/common/generators/load.go` · sink `loadPayloads` · fix: sandbox isolation
+
+## Historical Vulnerability Classes
+
+| Class | Fixes | Verified | Most recent fix |
+|---|---|---|---|
+| SSRF | 3 | 0 | [2026-10-18][c-1c0f77d28e] 1c0f77d28e |
+| Arbitrary File Access | 1 (1 component gone, not counted) | 2 | [2026-06-19][c-634cecbb28] 634cecbb28 |
+| Code Execution | 2 | 2 | [2026-06-30][c-ccbfb12bd0] ccbfb12bd0 |
+| Sandbox Escape | 2 | 0 | [2026-06-24][c-3a8b65cb45] 3a8b65cb45 |
+| Signature Verification Bypass | 2 | 2 | [2026-07-03][c-fac0b7196d] fac0b7196d |
+| Information Disclosure | 1 | 0 | [2026-08-03][c-a20aa26024] a20aa26024 |
+| Path Traversal | 1 | 0 | [2026-06-04][c-20cbf0bd73] 20cbf0bd73 |
+| SQL Injection | 1 | 0 | [2026-06-23][c-68daef44a7] 68daef44a7 |
+
+## Known Advisories
+
+### Linked to a fix commit in this history (5)
+
+- **CVE-2026-76805** / GHSA-jpvm-9frm-hjcq (medium 5.3) CWE-200 — fixed in [ccbfb12bd0][c-ccbfb12bd0], [d221732016][c-d221732016]
+  - Environment Variable Disclosure via Response-Derived Data in DAST/Fuzz Mode. A vulnerability in Nuclei's DAST/fuzz expression evaluation path allows a malicious target server to trigger disclosure of ...
+- **CVE-2026-76803** / GHSA-xhmx-w2j4-rw3q (medium 5.3) CWE-284 — fixed in [634cecbb28][c-634cecbb28]
+  - Local File Read via MySQL Client Sandbox Bypass. A vulnerability in Nuclei's JavaScript MySQL client library allows arbitrary local file reads that bypass the `-allow-local-file-access` (`-lfa`) sandb...
+- **CVE-2026-76819** / GHSA-vxg7-f2jj-jmqm (high 8.6) CWE-94,CWE-787 — fixed in [fac0b7196d][c-fac0b7196d]
+  - Arbitrary Code Execution via Goja JavaScript Engine Vulnerability. A vulnerability in the Goja JavaScript engine used by Nuclei's `javascript:` protocol allows arbitrary native code execution on the s...
+- **CVE-2024-43405** / GHSA-7h5p-mmpp-hgmm (high 7.4) CWE-78 — fixed in [0da993afe6][c-0da993afe6]
+  - Nuclei Template Signature Verification Bypass. ## Summary A vulnerability has been identified in Nuclei's template signature verification system that could allow an attacker to bypass the signature ch...
+- **CVE-2023-37896** / GHSA-2xx4-jj5v-6mff (medium 5.9) CWE-22 — fixed in [e5154d362a][c-e5154d362a]
+  - Nuclei < 2.9.9 - Sandbox restriction bypass. ## Overview Affected: < 2.9.9 (patched 2.9.9).
+
+### Without a linked fix commit (6)
+
+Published elsewhere, fixed before the history window, or not yet linked; full descriptions are in the JSON context.
+
+| Advisory | Severity | Published | CWE | Summary |
+|---|---|---|---|---|
+| CVE-2026-76804 / GHSA-qgw5-7j4f-fg97 | medium 5.5 | 2026-07-16 | CWE-284 | Local File Read via Workflow File-Protocol Gate Bypass. A vulnerability in Nuclei's workfl... |
+| CVE-2026-76802 / GHSA-jpf4-98qj-qr67 | medium 4.7 | 2026-07-16 | CWE-78 | Arbitrary Command Execution via DAST Code Signature Bypass. A vulnerability in Nuclei's DA... |
+| CVE-2026-41645 / GHSA-jm34-66cf-qpvr | medium 5.3 | 2026-04-18 | CWE-94 | Environment variable disclosure via Response-Derived DSL Expressions. A vulnerability in N... |
+| CVE-2026-41646 / GHSA-29rg-wmcw-hpf4 | medium 5.5 | 2026-04-18 | CWE-284 | Local File Read via require() Module Loader Bypass. A vulnerability in Nuclei's JavaScript... |
+| CVE-2024-40641 / GHSA-c3q9-c27p-cw9h | high 7.4 | 2024-07-17 | CWE-78 | Unsigned code template execution through workflows in projectdiscovery/nuclei. ### Summary... |
+| CVE-2024-27920 / GHSA-w5wx-6g2r-r78q | high 7.4 | 2024-03-15 | CWE-78 | Unsigned code template execution through workflows in projectdiscovery/nuclei. ### Overvie... |
+
+[c-df57ae6d29]: https://github.com/projectdiscovery/nuclei/commit/df57ae6d2955864fd92a1bd2565fe9e4e9a7592b
+[c-d43c1f547f]: https://github.com/projectdiscovery/nuclei/commit/d43c1f547f98ac56654f4335ad20af0cca4c229c
+[c-d9dabbb4a1]: https://github.com/projectdiscovery/nuclei/commit/d9dabbb4a19e897a6bc12334a030a43035b27b73
+[c-e5154d362a]: https://github.com/projectdiscovery/nuclei/commit/e5154d362af900e83b30fb79028bfab1a7f0c648
+[c-634cecbb28]: https://github.com/projectdiscovery/nuclei/commit/634cecbb289db494247c04a9c4ec6a113aef3cc0
+[c-ccbfb12bd0]: https://github.com/projectdiscovery/nuclei/commit/ccbfb12bd01447ba25f6e755dfb2bee677736da6
+[c-d221732016]: https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3
+[c-a20aa26024]: https://github.com/projectdiscovery/nuclei/commit/a20aa260245e5db889c5a421d4a65aeb2a64bf46
+[c-1c0f77d28e]: https://github.com/projectdiscovery/nuclei/commit/1c0f77d28ed639a34c2036fa23c7503ffac0bf27
+[c-fac0b7196d]: https://github.com/projectdiscovery/nuclei/commit/fac0b7196d2fbca56c8af8ff8e1899c111041a37
+[c-3a8b65cb45]: https://github.com/projectdiscovery/nuclei/commit/3a8b65cb45f121fcdf418f60e5177ed9f250c122
+[c-68daef44a7]: https://github.com/projectdiscovery/nuclei/commit/68daef44a7eafd41c39690924620e418762909ef
+[c-20cbf0bd73]: https://github.com/projectdiscovery/nuclei/commit/20cbf0bd73893c1270582c9778b6b26a5cb11206
+[c-6f2ade6a9b]: https://github.com/projectdiscovery/nuclei/commit/6f2ade6a9b427c284c15a43445f9c7f055e60e5d
+[c-0da993afe6]: https://github.com/projectdiscovery/nuclei/commit/0da993afe6d41b4b1b814e8fad23a2acba13c60a
 
 ---
-_Fixed-issue fingerprints and CVE matches are derived from real data; LLM-written prose is advisory and should be verified against the cited commits._
+_Fixed-issue fingerprints and advisory matches are derived from git history and published advisories; the risk tables and pattern descriptions above are derived from them and should be verified against the cited commits._

SYNTAX-REFERENCE.md

@@ -530,6 +530,16 @@ Description of the template.
 
 You can go in-depth here on what the template actually does.
 
+Description, impact and remediation may hold {{placeholders}} filled for
+each finding: named extractors, payloads, variables and DSL helpers
+(network helpers excluded), and the result fields host, port, ip, url,
+scheme, path, matched-at, matcher-name and extractor-name, which win over
+values of the same name. Use join(", ", name) for an extractor with
+several values, and brackets for a hyphenated name inside a helper:
+to_upper([matcher-name]). Unknown placeholders stay as written, and so
+does a field whose expression fails. Global matcher templates match on
+other templates' responses, so only the result fields fill their text.
+
 
 
 Examples:
@@ -543,6 +553,10 @@ description: Bower is a package manager which stores package information in the
 description: Subversion ALM for the enterprise before 8.8.2 allows reflected XSS at multiple locations
 ```
 
+```yaml
+description: Redis {{version}} on {{host}}:{{port}} accepts the default password
+```
+
 
 </div>
 
@@ -559,6 +573,8 @@ Impact of the template.
 
 You can go in-depth here on impact of the template.
 
+Supports the same placeholders as description.
+
 
 
 Examples:
@@ -665,6 +681,8 @@ Remediation steps for the template.
 
 You can go in-depth here on how to mitigate the problem found by this template.
 
+Supports the same placeholders as description.
+
 
 
 Examples:
@@ -3757,6 +3775,8 @@ Part Definitions:
 - <code>req</code> - Headless request made from the client
 - <code>duration</code> - Latest measured operation duration in seconds
 - <code>resp,body,data</code> - Headless response received from client (default)
+- <code>header,all_headers</code> - Headless response headers
+- <code>status_code</code> - Status code received from the server
 
 <hr />
 

_typos.toml

@@ -20,6 +20,8 @@ extend-exclude = [
     "vendor/",
     # Go checksum file
     "go.sum",
+    # Generated history. Commit SHAs are not words.
+    "SECURITY_CONTEXT.md",
 ]
 
 [default.extend-identifiers]

cmd/nuclei/header_test.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/projectdiscovery/gologger"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/stretchr/testify/require"
+)
+
+const headerChildEnv = "NUCLEI_HEADER_CHILD_ARGS"
+
+// -H values can contain "#", on the command line, in a header file and in the
+// config file, while lines of a header file that start with "#" are skipped as
+// comments.
+func TestHeaderValuesKeepHash(t *testing.T) {
+	if args := os.Getenv(headerChildEnv); args != "" {
+		options = &types.Options{Logger: gologger.DefaultLogger}
+		os.Args = append([]string{os.Args[0]}, strings.Split(args, "\n")...)
+		readConfig()
+		fmt.Printf("headers=%s\n", strings.Join(options.CustomHeaders, "|"))
+		os.Exit(0)
+	}
+
+	root := t.TempDir()
+	headerFile := filepath.Join(root, "headers.txt")
+	require.NoError(t, os.WriteFile(headerFile, []byte("# auth headers\nX-Token: abc#def\nReferer: https://app.example.com/#/dashboard\n"), 0o600))
+	configFile := filepath.Join(root, "config.yaml")
+	require.NoError(t, os.WriteFile(configFile, []byte("header:\n  - \"X-Config: cfg#value\"\n"), 0o600))
+
+	tests := []struct {
+		name string
+		args []string
+		want string
+	}{
+		{"cli and header file", []string{"-H", "Cookie: sid=1; color=#ff0000", "-H", headerFile}, "Cookie: sid=1; color=#ff0000|X-Token: abc#def|Referer: https://app.example.com/#/dashboard"},
+		{"config file", []string{"-config", configFile}, "X-Config: cfg#value"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			tempRoot := filepath.Join(t.TempDir(), "tmp")
+			require.NoError(t, os.Mkdir(tempRoot, 0o700))
+
+			args := append(tt.args, "-disable-update-check")
+			cmd := exec.Command(os.Args[0], "-test.run=^TestHeaderValuesKeepHash$", "-test.count=1")
+			cmd.Env = isolatedNucleiStorageEnv(root, tempRoot, headerChildEnv+"="+strings.Join(args, "\n"))
+			output, err := cmd.CombinedOutput()
+			require.NoError(t, err, string(output))
+			require.Contains(t, string(output), "headers="+tt.want+"\n")
+		})
+	}
+}

cmd/nuclei/issue-tracker-config.yaml

@@ -57,7 +57,8 @@
 #    severity: low
 #  # duplicate-issue-check (optional) flag to enable duplicate tracking issue check
 #  duplicate-issue-check: false
-#  # duplicate-issue-page-size (optional) controls how many issues to fetch per page when searching for duplicates
+#  # duplicate-issue-page-size (optional) sets the number of issues to request per page when searching for duplicates
+#  # (GitLab returns at most 100 issues per page)
 #  duplicate-issue-page-size: 100
 #  # duplicate-issue-max-pages (optional) limits how many pages to fetch when searching for duplicates (0 = no limit)
 #  duplicate-issue-max-pages: 0

cmd/nuclei/main.go

@@ -55,6 +55,17 @@ var (
 	inlineSecretsTempMu  sync.Mutex
 )
 
+// normalizeHeaderValue trims a -H value and drops it when the whole line is a
+// "#" comment. The goflags default strips inline comments, which cut values
+// such as "Cookie: color=#fff" at the "#".
+func normalizeHeaderValue(s string) string {
+	s = strings.TrimSpace(s)
+	if strings.HasPrefix(s, "#") {
+		return ""
+	}
+	return s
+}
+
 func main() {
 	options.Logger = gologger.DefaultLogger
 
@@ -255,6 +266,11 @@ func readConfig() *goflags.FlagSet {
 	var pdcpAuth string
 	var fuzzFlag bool
 
+	// FileStringSliceOptions as set up by runner.ConfigureOptions, but keeping
+	// "#" inside -H values
+	headerSliceOptions := goflags.FileStringSliceOptions
+	headerSliceOptions.Normalize = normalizeHeaderValue
+
 	flagSet := goflags.NewFlagSet()
 	flagSet.CaseSensitive = true
 	flagSet.SetDescription(`Nuclei is a fast, template based vulnerability scanner focusing
@@ -271,10 +287,10 @@ on extensive configurability, massive extensibility and ease of use.`)
 		flagSet.StringSliceVarP(&options.Targets, "target", "u", nil, "target URLs/hosts to scan", goflags.CommaSeparatedStringSliceOptions),
 		flagSet.StringVarP(&options.TargetsFilePath, "list", "l", "", "path to file containing a list of target URLs/hosts to scan (one per line)"),
 		flagSet.StringVarP(&options.InlineTargetsList, "targets-inline", "", "", "inline multiline target list (for use in template profiles)"),
-		flagSet.StringSliceVarP(&options.ExcludeTargets, "exclude-hosts", "eh", nil, "hosts to exclude to scan from the input list (ip, cidr, hostname)", goflags.FileCommaSeparatedStringSliceOptions),
+		flagSet.StringSliceVarP(&options.ExcludeTargets, "exclude-hosts", "eh", nil, "hosts to exclude to scan from the input list (ip, cidr, hostname)", goflags.FileNormalizedOriginalStringSliceOptions),
 		flagSet.StringVar(&options.Resume, "resume", "", "resume scan from and save to specified file (clustering will be disabled)"),
 		flagSet.BoolVarP(&options.ScanAllIPs, "scan-all-ips", "sa", false, "scan all the IP's associated with dns record"),
-		flagSet.StringSliceVarP(&options.IPVersion, "ip-version", "iv", nil, "IP version to scan of hostname (4,6) - (default 4)", goflags.CommaSeparatedStringSliceOptions),
+		flagSet.StringSliceVarP(&options.IPVersion, "ip-version", "iv", nil, "IP version to scan of hostname (4,6); default uses dialer fallback, -sa scans all addresses", goflags.CommaSeparatedStringSliceOptions),
 		flagSet.BoolVarP(&options.DisableURLNormalization, "disable-url-normalization", "dun", false, "keep targets exactly as supplied instead of collapsing urls that address the same resource"),
 		flagSet.IntVarP(&options.MaxURLsPerPattern, "max-urls-per-pattern", "mup", 0, "scan at most this many urls sharing one structural shape, e.g. /user/1 and /user/2 (0 to scan all)"),
 	)
@@ -309,7 +325,7 @@ on extensive configurability, massive extensibility and ease of use.`)
 		flagSet.BoolVarP(&options.EnableGlobalMatchersTemplates, "enable-global-matchers", "egm", false, "enable loading global matchers templates"),
 		flagSet.BoolVar(&options.EnableFileTemplates, "file", false, "enable loading file templates"),
 		flagSet.BoolVar(&options.EnableLLM, "llm", false, "enable llm matchers and extractors (semantic matching)"),
-		flagSet.StringVar(&options.LLMProvider, "llm-provider", "openai", "llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter)"),
+		flagSet.StringVar(&options.LLMProvider, "llm-provider", "openai", "llm provider for semantic matching (openai, ollama, llamacpp, vllm, lmstudio, groq, openrouter, together, orcarouter, jev)"),
 		flagSet.StringVar(&options.LLMBaseURL, "llm-base-url", "", "openai-compatible endpoint for semantic matching (overrides -llm-provider, e.g. a local model)"),
 		flagSet.StringVar(&options.LLMModel, "llm-model", "", "model used for semantic matching"),
 		flagSet.IntVar(&options.LLMTimeout, "llm-timeout", 30, "time in seconds to wait for a single llm call"),
@@ -355,6 +371,7 @@ on extensive configurability, massive extensibility and ease of use.`)
 		flagSet.StringVarP(&options.JSONLExport, "jsonl-export", "jle", "", "file to export results in JSONL(ine) format"),
 		flagSet.StringVarP(&options.PDFExport, "pdf-export", "pe", "", "file to export results in PDF format"),
 		flagSet.StringSliceVarP(&options.Redact, "redact", "rd", nil, "redact given list of keys from query parameter, request header and body", goflags.CommaSeparatedStringSliceOptions),
+		flagSet.BoolVarP(&options.NoRedact, "no-redact", "nrd", false, "disable the built-in redaction of credential headers (Authorization, Cookie, Set-Cookie, ...) in output; keys given with -redact are still redacted"),
 	)
 
 	flagSet.CreateGroup("configs", "Configurations",
@@ -366,7 +383,7 @@ on extensive configurability, massive extensibility and ease of use.`)
 		flagSet.IntVarP(&options.MaxRedirects, "max-redirects", "mr", 10, "max number of redirects to follow for http templates"),
 		flagSet.BoolVarP(&options.DisableRedirects, "disable-redirects", "dr", false, "disable redirects for http templates"),
 		flagSet.StringVarP(&options.ReportingConfig, "report-config", "rc", "", "nuclei reporting module configuration file"), // TODO merge into the config file or rename to issue-tracking
-		flagSet.StringSliceVarP(&options.CustomHeaders, "header", "H", nil, "custom header/cookie to include in all http request in header:value format (cli, file)", goflags.FileStringSliceOptions),
+		flagSet.StringSliceVarP(&options.CustomHeaders, "header", "H", nil, "custom header/cookie to include in all http request in header:value format (cli, file)", headerSliceOptions),
 		flagSet.RuntimeMapVarP(&options.Vars, "var", "V", nil, "custom vars in key=value format"),
 		flagSet.StringVarP(&options.ResolversFile, "resolvers", "r", "", "file containing resolver list for nuclei"),
 		flagSet.BoolVarP(&options.SystemResolvers, "system-resolvers", "sr", false, "use system DNS resolving as error fallback"),
@@ -390,6 +407,7 @@ on extensive configurability, massive extensibility and ease of use.`)
 		flagSet.IntVarP(&options.ResponseReadSize, "response-size-read", "rsr", 0, "max response size to read in bytes"),
 		flagSet.IntVarP(&options.ResponseSaveSize, "response-size-save", "rss", unitutils.Mega, "max response size to read in bytes"),
 		flagSet.IntVarP(&options.RequestSaveSize, "request-size-save", "rqss", 32*unitutils.Kilo, "max request body size to save in bytes (0 to save the whole body)"),
+		flagSet.IntVarP(&options.MaxRequestBodyInFlight, "max-request-body-inflight", "mrbi", 0, "max request body bytes held by in-flight http requests; requests with bodies of 1MB or more queue past it (0 disables)"),
 		flagSet.CallbackVar(func() { resetRequested = true }, "reset", "reset removes all nuclei configuration and data files (including nuclei-templates)"),
 		flagSet.BoolVarP(&options.TlsImpersonate, "tls-impersonate", "tlsi", false, "enable experimental client hello (ja3) tls randomization"),
 		flagSet.StringVarP(&options.HttpApiEndpoint, "http-api-endpoint", "hae", "", "experimental http api endpoint"),
@@ -470,6 +488,7 @@ on extensive configurability, massive extensibility and ease of use.`)
 		flagSet.BoolVar(&options.PreflightPortScan, "preflight-portscan", false, "run preflight resolve + TCP portscan and filter targets before scanning (disabled by default)"),
 		flagSet.BoolVar(&options.DisableStdin, "no-stdin", false, "disable stdin processing"),
 		flagSet.BoolVar(&options.EnableHTTPCache, "http-cache", false, "enable HTTP cache (RFC 9111) for HTTP requests"),
+		flagSet.BoolVarP(&options.AutoCalibrate, "auto-calibrate", "ac", false, "drop HTTP matches on a host's catch-all page (answers missing paths with 2xx/3xx)"),
 	)
 
 	flagSet.CreateGroup("headless", "Headless",

go.mod

@@ -15,13 +15,14 @@ require (
 	github.com/Mzack9999/go-rsync v0.0.0-20250821180103-81ffa574ef4d
 	github.com/RedTeamPentesting/adauth v0.5.4-0.20260511073005-3d18e8a5a687
 	github.com/adrg/xdg v0.5.3
-	github.com/alecthomas/chroma v0.10.0
+	github.com/alecthomas/chroma/v2 v2.27.0
 	github.com/alexsnet/go-vnc v0.1.0
 	github.com/alitto/pond v1.9.2
+	github.com/andybalholm/brotli v1.2.0
 	github.com/andygrunwald/go-jira v1.16.1
-	github.com/antchfx/htmlquery v1.3.5
+	github.com/antchfx/htmlquery v1.3.7
 	github.com/antchfx/xmlquery v1.4.4
-	github.com/antchfx/xpath v1.3.6
+	github.com/antchfx/xpath v1.3.9
 	github.com/aws/aws-sdk-go-v2 v1.41.5
 	github.com/aws/aws-sdk-go-v2/config v1.31.16
 	github.com/aws/aws-sdk-go-v2/credentials v1.18.20
@@ -33,10 +34,11 @@ require (
 	github.com/clbanning/mxj/v2 v2.7.0
 	github.com/ditashi/jsbeautifier-go v0.0.0-20141206144643-2520a8026a9c
 	github.com/docker/go-units v0.5.0
+	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707
 	github.com/elazarl/goproxy v1.7.2
 	github.com/fatih/structs v1.1.0
 	github.com/fullstorydev/grpcurl v1.9.3
-	github.com/getkin/kin-openapi v0.144.0
+	github.com/getkin/kin-openapi v0.149.0
 	github.com/getsops/sops/v3 v3.9.2
 	github.com/go-echarts/go-echarts/v2 v2.6.0
 	github.com/go-git/go-git/v5 v5.19.2
@@ -61,6 +63,7 @@ require (
 	github.com/jhump/protoreflect v1.17.0
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/kitabisa/go-ci v1.0.3
+	github.com/klauspost/compress v1.18.7
 	github.com/leslie-qiwa/flat v0.0.0-20230424180412-f9d1cf014baa
 	github.com/lib/pq v1.12.3
 	github.com/logrusorgru/aurora/v4 v4.0.0
@@ -71,11 +74,12 @@ require (
 	github.com/miekg/dns v1.1.73
 	github.com/oiweiwei/go-msrpc v1.2.12
 	github.com/olekukonko/tablewriter v1.0.8
+	github.com/openrdap/rdap v0.9.1
 	github.com/ory/dockertest/v3 v3.12.0
 	github.com/pkg/errors v0.9.1
 	github.com/praetorian-inc/fingerprintx v1.1.15
 	github.com/projectdiscovery/clistats v0.1.7
-	github.com/projectdiscovery/dsl v0.8.24
+	github.com/projectdiscovery/dsl v0.9.0
 	github.com/projectdiscovery/fastdialer v0.6.0
 	github.com/projectdiscovery/fasttemplate v0.0.2
 	github.com/projectdiscovery/gcache v0.0.0-20241015120333-12546c6e3f4c
@@ -85,7 +89,7 @@ require (
 	github.com/projectdiscovery/goja_nodejs v0.0.0-20260618132410-8519f75f703d
 	github.com/projectdiscovery/gologger v1.1.73
 	github.com/projectdiscovery/gostruct v0.0.2
-	github.com/projectdiscovery/govaluate v0.0.0-20260615100919-5ee2581bbf7e
+	github.com/projectdiscovery/govaluate v0.0.0-20261102102118-9294133b15a2
 	github.com/projectdiscovery/gozero v0.1.1-0.20260530071156-fa1dad563d76
 	github.com/projectdiscovery/hmap v0.0.102
 	github.com/projectdiscovery/httpx v1.12.0
@@ -102,8 +106,8 @@ require (
 	github.com/projectdiscovery/tlsx v1.4.3-0.20261020052910-acb80c2c7c75
 	github.com/projectdiscovery/uncover v1.2.1
 	github.com/projectdiscovery/useragent v0.0.109
-	github.com/projectdiscovery/utils v0.11.12-0.20261025172519-64b3c221cfe5
-	github.com/projectdiscovery/wappalyzergo v0.3.5
+	github.com/projectdiscovery/utils v0.11.13-0.20261103094816-5c0b20e35350
+	github.com/projectdiscovery/wappalyzergo v0.3.6
 	github.com/projectdiscovery/yamldoc-go v1.0.7
 	github.com/redis/go-redis/v9 v9.19.0
 	github.com/remeh/sizedwaitgroup v1.0.0
@@ -113,6 +117,7 @@ require (
 	github.com/segmentio/ksuid v1.0.4
 	github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466
 	github.com/sijms/go-ora/v2 v2.9.0
+	github.com/spaolacci/murmur3 v1.1.0
 	github.com/spf13/cast v1.10.0
 	github.com/stretchr/testify v1.12.1
 	github.com/syndtr/goleveldb v1.0.0
@@ -171,11 +176,9 @@ require (
 	github.com/STARRY-S/zip v0.2.3 // indirect
 	github.com/VividCortex/ewma v1.2.0 // indirect
 	github.com/akrylysov/pogreb v0.10.2 // indirect
-	github.com/alecthomas/chroma/v2 v2.20.0 // indirect
 	github.com/alecthomas/kingpin/v2 v2.4.0 // indirect
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 // indirect
-	github.com/andybalholm/brotli v1.2.0 // indirect
 	github.com/andybalholm/cascadia v1.3.4 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
 	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.8 // indirect
@@ -234,12 +237,10 @@ require (
 	github.com/dimchansky/utfbom v1.1.1 // indirect
 	github.com/distribution/reference v0.6.0 // indirect
 	github.com/djherbis/times v1.6.0 // indirect
-	github.com/dlclark/regexp2 v1.11.5 // indirect
 	github.com/dlclark/regexp2/v2 v2.2.1 // indirect
 	github.com/docker/cli v29.2.0+incompatible // indirect
 	github.com/docker/go-connections v0.7.0 // indirect
 	github.com/dop251/goja v0.0.0-20260311135729-065cd970411c // indirect
-	github.com/dsnet/compress v0.0.2-0.20230904184137-39efe44ab707 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/ebitengine/purego v0.10.0 // indirect
 	github.com/emersion/go-sasl v0.0.0-20241020182733-b788ff22d5a6 // indirect
@@ -262,7 +263,7 @@ require (
 	github.com/go-fed/httpsig v1.1.0 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.9.0 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.6 // indirect
 	github.com/go-logr/logr v1.4.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
@@ -323,7 +324,6 @@ require (
 	github.com/kaiakz/ubuffer v0.0.0-20200803053910-dd1083087166 // indirect
 	github.com/kataras/jwt v0.1.10 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
-	github.com/klauspost/compress v1.18.7 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/klauspost/pgzip v1.2.6 // indirect
 	github.com/kylelemons/godebug v1.1.0 // indirect
@@ -366,7 +366,6 @@ require (
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.1 // indirect
 	github.com/opencontainers/runc v1.3.6 // indirect
-	github.com/openrdap/rdap v0.9.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
 	github.com/pierrec/lz4/v4 v4.1.23 // indirect
 	github.com/pjbgf/sha1cd v0.6.0 // indirect
@@ -385,14 +384,13 @@ require (
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/ryanuber/go-glob v1.0.0 // indirect
 	github.com/saintfish/chardet v0.0.0-20230101081208-5e3ef4b5456d // indirect
-	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 // indirect
+	github.com/santhosh-tekuri/jsonschema/v6 v6.0.3 // indirect
 	github.com/sergi/go-diff v1.4.0 // indirect
 	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
 	github.com/shirou/gopsutil/v4 v4.26.3 // indirect
 	github.com/sirupsen/logrus v1.10.2 // indirect
 	github.com/skeema/knownhosts v1.3.1 // indirect
 	github.com/sorairolake/lzip-go v0.3.8 // indirect
-	github.com/spaolacci/murmur3 v1.1.0 // indirect
 	github.com/spf13/afero v1.15.0 // indirect
 	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/spiffe/go-spiffe/v2 v2.7.0 // indirect

go.sum

@@ -147,15 +147,13 @@ github.com/akrylysov/pogreb v0.10.2 h1:e6PxmeyEhWyi2AKOBIJzAEi4HkiC+lKyCocRGlnDi
 github.com/akrylysov/pogreb v0.10.2/go.mod h1:pNs6QmpQ1UlTJKDezuRWmaqkgUE2TuU0YTWyqJZ7+lI=
 github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
 github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
-github.com/alecthomas/chroma v0.10.0 h1:7XDcGkCQopCNKjZHfYrNLraA+M7e0fMiJ/Mfikbfjek=
-github.com/alecthomas/chroma v0.10.0/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
-github.com/alecthomas/chroma/v2 v2.20.0 h1:sfIHpxPyR07/Oylvmcai3X/exDlE8+FA820NTz+9sGw=
-github.com/alecthomas/chroma/v2 v2.20.0/go.mod h1:e7tViK0xh/Nf4BYHl00ycY6rV7b8iXBksI9E359yNmA=
+github.com/alecthomas/chroma/v2 v2.27.0 h1:FodwmyOBgJULFYmDqibcp9pvfDLWdtPRh9v/r5BXYZs=
+github.com/alecthomas/chroma/v2 v2.27.0/go.mod h1:NjJ3ciIgrqBNeIkWZ4e46nseoLDslxU1LmfCoL+wcY8=
 github.com/alecthomas/kingpin/v2 v2.3.1/go.mod h1:oYL5vtsvEHZGHxU7DMp32Dvx+qL+ptGn6lWaot2vCNE=
 github.com/alecthomas/kingpin/v2 v2.4.0 h1:f48lwail6p8zpO1bC4TxtqACaGqHYA22qkHjHpqDjYY=
 github.com/alecthomas/kingpin/v2 v2.4.0/go.mod h1:0gyi0zQnjuFk8xrkNKamJoyUo382HRL7ATRpFZCw6tE=
-github.com/alecthomas/repr v0.5.1 h1:E3G4t2QbHTSNpPKBgMTln5KLkZHLOcU7r37J4pXBuIg=
-github.com/alecthomas/repr v0.5.1/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
+github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
+github.com/alecthomas/repr v0.5.2/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@@ -180,14 +178,13 @@ github.com/andygrunwald/go-jira v1.16.1 h1:WoQEar5XoDRAibOgKzTFELlPNlKAtnfWr296R
 github.com/andygrunwald/go-jira v1.16.1/go.mod h1:UQH4IBVxIYWbgagc0LF/k9FRs9xjIiQ8hIcC6HfLwFU=
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
-github.com/antchfx/htmlquery v1.3.5 h1:aYthDDClnG2a2xePf6tys/UyyM/kRcsFRm+ifhFKoU0=
-github.com/antchfx/htmlquery v1.3.5/go.mod h1:5oyIPIa3ovYGtLqMPNjBF2Uf25NPCKsMjCnQ8lvjaoA=
+github.com/antchfx/htmlquery v1.3.7 h1:KCUklE1EO/xm6iS3CWx6iatFlcnENBk4I4UYa2pBmLU=
+github.com/antchfx/htmlquery v1.3.7/go.mod h1:/uBTMnFEl6LaBlIgw3KZ+c061tAQdlfbCXObZoxwQf4=
 github.com/antchfx/xmlquery v1.4.4 h1:mxMEkdYP3pjKSftxss4nUHfjBhnMk4imGoR96FRY2dg=
 github.com/antchfx/xmlquery v1.4.4/go.mod h1:AEPEEPYE9GnA2mj5Ur2L5Q5/2PycJ0N9Fusrx9b12fc=
 github.com/antchfx/xpath v1.3.3/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
-github.com/antchfx/xpath v1.3.5/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
-github.com/antchfx/xpath v1.3.6 h1:s0y+ElRRtTQdfHP609qFu0+c6bglDv20pqOViQjjdPI=
-github.com/antchfx/xpath v1.3.6/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
+github.com/antchfx/xpath v1.3.9 h1:muXJSod6jRzhsiUjvduNSxsRSptFZ2GOJ1oMD1QkPSA=
+github.com/antchfx/xpath v1.3.9/go.mod h1:i54GszH55fYfBmoZXapTHN8T8tkcHfRgLyVwwqzXNcs=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
@@ -359,7 +356,6 @@ github.com/ditashi/jsbeautifier-go v0.0.0-20141206144643-2520a8026a9c h1:+Zo5Ca9
 github.com/ditashi/jsbeautifier-go v0.0.0-20141206144643-2520a8026a9c/go.mod h1:HJGU9ULdREjOcVGZVPB5s6zYmHi1RxzT71l2wQyLmnE=
 github.com/djherbis/times v1.6.0 h1:w2ctJ92J8fBvWPxugmXIv7Nz7Q3iDMKNx9v5ocVH20c=
 github.com/djherbis/times v1.6.0/go.mod h1:gOHeRAz2h+VJNZ5Gmc/o7iD9k4wW7NMVqieYCY99oc0=
-github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
 github.com/dlclark/regexp2 v1.11.5 h1:Q/sSnsKerHeCkc/jSTNq1oCm7KiVgUMZRDUoRu0JQZQ=
 github.com/dlclark/regexp2 v1.11.5/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
 github.com/dlclark/regexp2/v2 v2.2.1 h1:mf4KkFUj0gJuarK8P+LgiS+Lit7m9N1yAwEfPbee7R0=
@@ -427,8 +423,8 @@ github.com/gaissmai/bart v0.30.0 h1:K1oTSQ6Nf76bhrgxeTqzZa4hE0M9x4xDfL6n6UG67Sc=
 github.com/gaissmai/bart v0.30.0/go.mod h1:GREWQfTLRWz/c5FTOsIw+KkscuFkIV5t8Rp7Nd1Td5c=
 github.com/geoffgarside/ber v1.2.0 h1:/loowoRcs/MWLYmGX9QtIAbA+V/FrnVLsMMPhwiRm64=
 github.com/geoffgarside/ber v1.2.0/go.mod h1:jVPKeCbj6MvQZhwLYsGwaGI52oUorHoHKNecGT85ZCc=
-github.com/getkin/kin-openapi v0.144.0 h1:hIRcTH+KjLfkLpYU6bSSfdFpi0fZi1fp+hSPi4aQu9Y=
-github.com/getkin/kin-openapi v0.144.0/go.mod h1:3BH9M9XDe/y9M5DSvEocVYAYq1w0qrhJHjC/vZi0AaY=
+github.com/getkin/kin-openapi v0.149.0 h1:ZbhmVJ4yq5RZDUsyP8lcBcGMsjsaTqXEFt6isdtMDfA=
+github.com/getkin/kin-openapi v0.149.0/go.mod h1:1+BHDzstro+P5CKtPy1X4PfofnFgmRe6uvMy9+r9fKY=
 github.com/getsops/gopgagent v0.0.0-20240527072608-0c14999532fe h1:QKe/kmAYbndxwu91TcjHERsnMh5SgOB1x/qicvOdUJ8=
 github.com/getsops/gopgagent v0.0.0-20240527072608-0c14999532fe/go.mod h1:awFzISqLJoZLm+i9QQ4SgMNHDqljH6jWV0B36V5MrUM=
 github.com/getsops/sops/v3 v3.9.2 h1:Cuuahc/UGu7W3+NXd+mrl+2oXGxxj/jIPsw6Ah2CbxA=
@@ -456,8 +452,8 @@ github.com/go-git/go-git/v5 v5.19.2/go.mod h1:QqCBE1EFN5ddFmrliLQ3/ntRCUjZU3EJuw
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-jose/go-jose/v4 v4.1.4 h1:moDMcTHmvE6Groj34emNPLs/qtYXRVcd6S7NHbHz3kA=
-github.com/go-jose/go-jose/v4 v4.1.4/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
+github.com/go-jose/go-jose/v4 v4.1.6 h1:sNRkftxFJxwsILiQukqp5z83QBSmntVwmgRY7AqBDO4=
+github.com/go-jose/go-jose/v4 v4.1.6/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
@@ -935,8 +931,8 @@ github.com/projectdiscovery/cdncheck v1.3.2 h1:I453ZWNBeG0WWIy3wi9412l4PTzorLgeb
 github.com/projectdiscovery/cdncheck v1.3.2/go.mod h1:5IkUMMlcGaeg1DWW5oJVd3r9X3EpJ88j5HxBeF4Me9M=
 github.com/projectdiscovery/clistats v0.1.7 h1:NXf4lUzx1QcbJd6QycNwwYHTv2FsW9MchQ2LsgSL6C0=
 github.com/projectdiscovery/clistats v0.1.7/go.mod h1:RxRGxhMzkT344VTTvZWIrojurUXdQQRN1yfwgg/88I8=
-github.com/projectdiscovery/dsl v0.8.24 h1:rN2w6LSIjA16qKGRjyj70oxdwXGaspe6sAjEkP7F2fk=
-github.com/projectdiscovery/dsl v0.8.24/go.mod h1:V+EludvS5PS19UNMlM3CuBwZ+sFnMaQhCFGxysDUanQ=
+github.com/projectdiscovery/dsl v0.9.0 h1:i1KyCbKJyKfHkgdbfh0JkWdd14APUjpEYf+GaYANlCg=
+github.com/projectdiscovery/dsl v0.9.0/go.mod h1:ntNFkkiYCTEosGFTbApA61RMrvJTCjnakPxnWj56MyY=
 github.com/projectdiscovery/fastdialer v0.6.0 h1:4ZeFQ6LyRH4D8e3qO/yzqIP4Cf9Fr0DduaVpJD6ENnE=
 github.com/projectdiscovery/fastdialer v0.6.0/go.mod h1:FpHwa9S5PUgfPbh+irOm+cdU6AO631XidxkhPwPv7yY=
 github.com/projectdiscovery/fasttemplate v0.0.2 h1:h2cISk5xDhlJEinlBQS6RRx0vOlOirB2y3Yu4PJzpiA=
@@ -957,8 +953,8 @@ github.com/projectdiscovery/gologger v1.1.73 h1:WX2nzq29cL7HdvOHqIttacoid/5lMwap
 github.com/projectdiscovery/gologger v1.1.73/go.mod h1:mJwODZcFDg70ihINpOvZevmBtgvpP8H9/l8Y+OPhZPY=
 github.com/projectdiscovery/gostruct v0.0.2 h1:s8gP8ApugGM4go1pA+sVlPDXaWqNP5BBDDSv7VEdG1M=
 github.com/projectdiscovery/gostruct v0.0.2/go.mod h1:H86peL4HKwMXcQQtEa6lmC8FuD9XFt6gkNR0B/Mu5PE=
-github.com/projectdiscovery/govaluate v0.0.0-20260615100919-5ee2581bbf7e h1:vxzgQlz2Cy/YvizYDQx9OhucBcmBotfDhbQ4yCY2vfA=
-github.com/projectdiscovery/govaluate v0.0.0-20260615100919-5ee2581bbf7e/go.mod h1:xH7bPwHxUlz1yx9UlVeTF+UVCUaKhTnZgaxHb5z362E=
+github.com/projectdiscovery/govaluate v0.0.0-20261102102118-9294133b15a2 h1:aSLbDvrJQPlp4HvojU+bTU5XV8xdAVCjoc5gX1Wfbw4=
+github.com/projectdiscovery/govaluate v0.0.0-20261102102118-9294133b15a2/go.mod h1:Z3VjpUJV1pnXDwvAddA8aZ4e839SoeftB7CSdZntAVI=
 github.com/projectdiscovery/gozero v0.1.1-0.20260530071156-fa1dad563d76 h1:AN70bbi6BBs7KpIM9w0LxygUN7uzT/oH+owDIQ+Fz/k=
 github.com/projectdiscovery/gozero v0.1.1-0.20260530071156-fa1dad563d76/go.mod h1:cWHYnRXoYWHtTpOYyAp5laGYX8GH8ITUhgQaP8G/8FA=
 github.com/projectdiscovery/hmap v0.0.102 h1:ybPuf7UQvuOLiHLOUbVMvd+PSlItQU5iQpP1Erl8kaU=
@@ -999,10 +995,10 @@ github.com/projectdiscovery/uncover v1.2.1 h1:8U46T/96CLT7BPoXBgkTvWqB06lOyeTSLv
 github.com/projectdiscovery/uncover v1.2.1/go.mod h1:0p8onrWxfpXQEYs90ZDzTSpu1107gWmodX1NWqu/+z4=
 github.com/projectdiscovery/useragent v0.0.109 h1:b86BPdZvmgbJousa04jAugDRY4Y+rAvEamE0TFCPmeE=
 github.com/projectdiscovery/useragent v0.0.109/go.mod h1:sRyBqDAcD31RKYrO8fyXGowLd36fNwY1g0MNW9mp7zk=
-github.com/projectdiscovery/utils v0.11.12-0.20261025172519-64b3c221cfe5 h1:AOspf7ScbwZr8A2YnjCFd4ZJAMSFqzfEaIJIbJPuu10=
-github.com/projectdiscovery/utils v0.11.12-0.20261025172519-64b3c221cfe5/go.mod h1:TJgsyVjB02CavwZVFzUzPg6YOSJXQxLhL808JCiQKlU=
-github.com/projectdiscovery/wappalyzergo v0.3.5 h1:UZradYF1GIcruSIV5wwo/Coph9/VnM17oajLD9eXR2U=
-github.com/projectdiscovery/wappalyzergo v0.3.5/go.mod h1:4E6+fh/ckaY3wo5tlM7lNYSkhuTYRHzu2YmGIRraXP0=
+github.com/projectdiscovery/utils v0.11.13-0.20261103094816-5c0b20e35350 h1:uXqpYa6XKV9dCvoti9PbSgIWIsBKPu5YKMywB9G4q0Q=
+github.com/projectdiscovery/utils v0.11.13-0.20261103094816-5c0b20e35350/go.mod h1:TJgsyVjB02CavwZVFzUzPg6YOSJXQxLhL808JCiQKlU=
+github.com/projectdiscovery/wappalyzergo v0.3.6 h1:1FXCMeCa1xVu2zaW+eeBcbVxtlMStqGOlKcMLyh2pzI=
+github.com/projectdiscovery/wappalyzergo v0.3.6/go.mod h1:4E6+fh/ckaY3wo5tlM7lNYSkhuTYRHzu2YmGIRraXP0=
 github.com/projectdiscovery/yamldoc-go v1.0.7 h1:Odmjd1o4EkMff2F6QHi1dIYPIQPZUFy24YqmQCprmTk=
 github.com/projectdiscovery/yamldoc-go v1.0.7/go.mod h1:nqD1iPMcofpRA1DbXavPByJhWURrshT+l8WN9XjyQag=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
@@ -1055,8 +1051,8 @@ github.com/saintfish/chardet v0.0.0-20230101081208-5e3ef4b5456d h1:hrujxIzL1woJ7
 github.com/saintfish/chardet v0.0.0-20230101081208-5e3ef4b5456d/go.mod h1:uugorj2VCxiV1x+LzaIdVa9b4S4qGAcH6cbhh4qVxOU=
 github.com/sandrolain/httpcache v1.4.0 h1:Jf4Vx62X2ybvNPSpPvI1kT3xvMdDG1AsApQjOQKO9E0=
 github.com/sandrolain/httpcache v1.4.0/go.mod h1:kHBuXveitSn39SNPBhdf/ybG272X706HJ2RJqOQ+Em0=
-github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 h1:KRzFb2m7YtdldCEkzs6KqmJw4nqEVZGK7IN2kJkjTuQ=
-github.com/santhosh-tekuri/jsonschema/v6 v6.0.2/go.mod h1:JXeL+ps8p7/KNMjDQk3TCwPpBy0wYklyWTfbkIzdIFU=
+github.com/santhosh-tekuri/jsonschema/v6 v6.0.3 h1:1EYB5IzjZawrrnELUi78f9fPu57HuXjmddZPjrls/28=
+github.com/santhosh-tekuri/jsonschema/v6 v6.0.3/go.mod h1:JXeL+ps8p7/KNMjDQk3TCwPpBy0wYklyWTfbkIzdIFU=
 github.com/segmentio/ksuid v1.0.4 h1:sBo2BdShXjmcugAMwjugoGUdUV0pcxY5mW4xKRn3v4c=
 github.com/segmentio/ksuid v1.0.4/go.mod h1:/XUiZBD3kVx5SmUOl55voK5yeAbBNNIed+2O73XgrPE=
 github.com/sergi/go-diff v1.4.0 h1:n/SP9D5ad1fORl+llWyN+D6qoUETXNZARKjyY2/KVCw=

internal/pdcp/writer.go

@@ -4,6 +4,8 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"crypto/tls"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -87,11 +89,7 @@ func NewUploadWriter(ctx context.Context, logger *gologger.Logger, creds *pdcpau
 	tmp.Update()
 	u.uploadURL = tmp.URL
 
-	// create http client
-	opts := retryablehttp.DefaultOptionsSingle
-	opts.NoAdjustTimeout = true
-	opts.Timeout = time.Duration(3) * time.Minute
-	u.client = retryablehttp.NewClient(opts)
+	u.client = newUploadClient()
 
 	// create context
 	ctx, u.cancel = context.WithCancel(ctx)
@@ -101,6 +99,32 @@ func NewUploadWriter(ctx context.Context, logger *gologger.Logger, creds *pdcpau
 	return u, nil
 }
 
+// newUploadClient returns the client for cloud uploads. The upload sends the
+// API key and the scan results, so the client verifies the server certificate.
+// The retryablehttp default clients skip verification.
+func newUploadClient() *retryablehttp.Client {
+	transport := retryablehttp.DefaultReusePooledTransport()
+	// fastdialer DialTLS does not verify certificates, so net/http does the
+	// TLS handshake over the fastdialer connection.
+	transport.DialTLSContext = nil
+	transport.TLSClientConfig = &tls.Config{MinVersion: tls.VersionTLS12}
+
+	opts := retryablehttp.DefaultOptionsSingle
+	opts.NoAdjustTimeout = true
+	opts.Timeout = time.Duration(3) * time.Minute
+	opts.HttpClient = &http.Client{Transport: transport}
+	// a certificate error does not go away on retry
+	defaultRetry := retryablehttp.DefaultRetryPolicy()
+	opts.CheckRetry = func(ctx context.Context, resp *http.Response, err error) (bool, error) {
+		var certErr *tls.CertificateVerificationError
+		if errors.As(err, &certErr) {
+			return false, nil
+		}
+		return defaultRetry(ctx, resp, err)
+	}
+	return retryablehttp.NewClient(opts)
+}
+
 // SetScanID sets the scan id for the upload writer
 func (u *UploadWriter) SetScanID(id string) error {
 	if !xidRegex.MatchString(id) {

internal/pdcp/writer_tls_test.go

@@ -0,0 +1,55 @@
+package pdcp
+
+import (
+	"context"
+	"crypto/tls"
+	"crypto/x509"
+	"net/http"
+	"net/http/httptest"
+	"sync/atomic"
+	"testing"
+
+	"github.com/projectdiscovery/gologger"
+	pdcpauth "github.com/projectdiscovery/utils/auth/pdcp"
+	"github.com/stretchr/testify/require"
+)
+
+func newTestUploadWriter(t *testing.T, gotKey *atomic.Value) (*UploadWriter, *httptest.Server) {
+	t.Helper()
+	srv := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotKey.Store(r.Header.Get(pdcpauth.ApiKeyHeaderName))
+		_, _ = w.Write([]byte(`{"id":"abcdefghij0123456789"}`))
+	}))
+	t.Cleanup(srv.Close)
+	creds := &pdcpauth.PDCPCredentials{APIKey: "test-key", Server: srv.URL}
+	u, err := NewUploadWriter(context.Background(), gologger.DefaultLogger, creds)
+	require.NoError(t, err)
+	t.Cleanup(u.Close)
+	return u, srv
+}
+
+func TestUploadRejectsUntrustedCertificate(t *testing.T) {
+	var gotKey atomic.Value
+	u, _ := newTestUploadWriter(t, &gotKey)
+
+	err := u.upload([]byte("{}\n"))
+	require.Error(t, err)
+	var unknownAuthority x509.UnknownAuthorityError
+	require.ErrorAs(t, err, &unknownAuthority)
+	require.Nil(t, gotKey.Load(), "API key must not reach a server with an untrusted certificate")
+}
+
+func TestUploadTrustedCertificate(t *testing.T) {
+	var gotKey atomic.Value
+	u, srv := newTestUploadWriter(t, &gotKey)
+
+	pool := x509.NewCertPool()
+	pool.AddCert(srv.Certificate())
+	transport, ok := u.client.HTTPClient.Transport.(*http.Transport)
+	require.True(t, ok)
+	transport.TLSClientConfig = &tls.Config{RootCAs: pool, MinVersion: tls.VersionTLS12}
+
+	require.NoError(t, u.upload([]byte("{}\n")))
+	require.Equal(t, "test-key", gotKey.Load())
+	require.Equal(t, "abcdefghij0123456789", u.scanID)
+}

internal/runner/inputs.go

@@ -39,6 +39,9 @@ func (r *Runner) initializeTemplatesHTTPInput() (*hybrid.HybridMap, error) {
 	}
 	httpxOptions.RetryMax = r.options.Retries
 	httpxOptions.Timeout = time.Duration(r.options.Timeout) * time.Second
+	if len(r.options.InternalResolversList) > 0 {
+		httpxOptions.Resolvers = r.options.InternalResolversList
+	}
 
 	dialers := protocolstate.GetDialersWithId(r.options.ExecutionId)
 	if dialers == nil {

internal/runner/llm.go

@@ -2,8 +2,12 @@ package runner
 
 import (
 	"context"
+	"errors"
+	"sync"
 	"time"
 
+	"github.com/projectdiscovery/gologger"
+
 	llmclient "github.com/projectdiscovery/nuclei/v3/pkg/operators/common/llm"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
 	utilsllm "github.com/projectdiscovery/utils/llm"
@@ -28,6 +32,32 @@ func (a *llmMatcherClient) Complete(ctx context.Context, prompt string, asJSON b
 	})
 }
 
+// llmJudgeClient is an llmMatcherClient whose provider classifies natively, so
+// llm matchers ask it through Judge instead of Complete.
+type llmJudgeClient struct {
+	*llmMatcherClient
+	warnComplete sync.Once
+}
+
+func (a *llmJudgeClient) Judge(ctx context.Context, question string, labels, inputs []string) (llmclient.Verdict, error) {
+	verdict, err := a.client.Judge(ctx, utilsllm.JudgeRequest{Question: question, Labels: labels, Inputs: inputs})
+	if err != nil {
+		return llmclient.Verdict{}, err
+	}
+	return llmclient.Verdict{Label: verdict.Label, Confidence: verdict.Confidence, Model: verdict.Model}, nil
+}
+
+// Complete is only reached by llm extractors, which need free text a
+// classifier cannot produce. Returning here spends no call budget and
+// makes no provider request. Extractors turn the error into an empty
+// result, and the warning says why.
+func (a *llmJudgeClient) Complete(context.Context, string, bool) (string, error) {
+	a.warnComplete.Do(func() {
+		gologger.Warning().Msgf("llm provider %q cannot run llm extractors, they return nothing", utilsllm.ProviderJev)
+	})
+	return "", errors.New("llm provider cannot run extractors")
+}
+
 // configureLLM builds the scan's llm client from options. It returns nil unless
 // -llm is set, so nothing reaches a model until the user opts in. The API key is
 // read from the environment by the provider layer, never from options.
@@ -52,5 +82,9 @@ func configureLLM(options *types.Options) (llmclient.Client, error) {
 		return nil, err
 	}
 
-	return &llmMatcherClient{client: client, model: options.LLMModel}, nil
+	matcherClient := &llmMatcherClient{client: client, model: options.LLMModel}
+	if client.CanJudge() {
+		return &llmJudgeClient{llmMatcherClient: matcherClient}, nil
+	}
+	return matcherClient, nil
 }

internal/runner/llm_test.go

@@ -0,0 +1,65 @@
+package runner
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"sync/atomic"
+	"testing"
+
+	llmclient "github.com/projectdiscovery/nuclei/v3/pkg/operators/common/llm"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/stretchr/testify/require"
+)
+
+func TestConfigureLLMExposesJudgeOnlyForClassifiers(t *testing.T) {
+	t.Setenv("LLM_API_KEY", "key")
+
+	client, err := configureLLM(&types.Options{EnableLLM: true, LLMProvider: "jev", LLMModel: "jev-latest"})
+	require.NoError(t, err)
+	require.Implements(t, (*llmclient.Judge)(nil), client)
+
+	client, err = configureLLM(&types.Options{EnableLLM: true, LLMProvider: "ollama", LLMModel: "llama3.2"})
+	require.NoError(t, err)
+	_, isJudge := client.(llmclient.Judge)
+	require.False(t, isJudge, "chat providers keep the Complete path")
+}
+
+func TestJevExtractorDoesNotSpendCallBudget(t *testing.T) {
+	t.Setenv("LLM_API_KEY", "key")
+	// ProxyFromEnvironment caches the first request in the process. Match the
+	// proxy the interactsh client test expects, and keep the local server direct.
+	for _, key := range []string{"HTTP_PROXY", "http_proxy", "ALL_PROXY", "all_proxy", "https_proxy", "no_proxy"} {
+		t.Setenv(key, "")
+	}
+	t.Setenv("HTTPS_PROXY", "http://127.0.0.1:9")
+	t.Setenv("NO_PROXY", "127.0.0.1,localhost")
+
+	var calls atomic.Int32
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		calls.Add(1)
+		_, _ = w.Write([]byte(`{"model":"jev-1.14.0","answers":{"q":{"type":"noul","noul":0.9}}}`))
+	}))
+	t.Cleanup(server.Close)
+
+	client, err := configureLLM(&types.Options{
+		EnableLLM:   true,
+		LLMProvider: "jev",
+		LLMBaseURL:  server.URL + "/v1",
+		LLMModel:    "jev-latest",
+		LLMMaxCalls: 1,
+	})
+	require.NoError(t, err)
+
+	_, err = client.Complete(context.Background(), "extract the title", true)
+	require.ErrorContains(t, err, "cannot run extractors")
+	_, err = client.Complete(context.Background(), "extract another", true)
+	require.Error(t, err)
+	require.Zero(t, calls.Load())
+
+	judge := client.(llmclient.Judge)
+	verdict, err := judge.Judge(context.Background(), "login page?", nil, []string{"<form>"})
+	require.NoError(t, err)
+	require.Equal(t, "yes", verdict.Label)
+	require.EqualValues(t, 1, calls.Load())
+}

internal/runner/options.go

@@ -228,25 +228,14 @@ func ValidateOptions(options *types.Options) error {
 		}
 	}
 
-	// verify that a valid ip version type was selected (4, 6)
-	if len(options.IPVersion) == 0 {
-		// add ipv4 as default
-		options.IPVersion = append(options.IPVersion, "4")
-	}
-	var useIPV4, useIPV6 bool
+	// An empty -iv leaves one unpinned target so the dialer can fall back
+	// between address families. -sa resolves and scans every selected address.
+	// Explicit -iv 4, -iv 6 and -iv 4,6 retain their usual selection semantics.
 	for _, ipv := range options.IPVersion {
-		switch ipv {
-		case "4":
-			useIPV4 = true
-		case "6":
-			useIPV6 = true
-		default:
+		if ipv != "4" && ipv != "6" {
 			return fmt.Errorf("unsupported ip version: %s", ipv)
 		}
 	}
-	if !useIPV4 && !useIPV6 {
-		return errors.New("ipv4 and/or ipv6 must be selected")
-	}
 	return nil
 }
 

internal/runner/options_test.go

@@ -90,3 +90,15 @@ func TestReadsTargetsFromStdin(t *testing.T) {
 		})
 	}
 }
+
+// The default must remain empty so the provider can distinguish automatic
+// IPv6 preference from explicit user-supplied -iv selections.
+func TestValidateOptionsIPVersionPreference(t *testing.T) {
+	automatic := &types.Options{}
+	require.NoError(t, ValidateOptions(automatic))
+	require.Empty(t, automatic.IPVersion)
+	for _, versions := range []goflags.StringSlice{{"4"}, {"6"}, {"4", "6"}} {
+		require.NoError(t, ValidateOptions(&types.Options{IPVersion: versions}))
+	}
+	require.ErrorContains(t, ValidateOptions(&types.Options{IPVersion: goflags.StringSlice{"7"}}), "unsupported ip version")
+}

internal/runner/runner.go

@@ -67,11 +67,13 @@ import (
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/utils/excludematchers"
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/headless/engine"
 	httpProtocol "github.com/projectdiscovery/nuclei/v3/pkg/protocols/http"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/http/catchall"
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/http/httpclientpool"
 	"github.com/projectdiscovery/nuclei/v3/pkg/reporting"
 	"github.com/projectdiscovery/nuclei/v3/pkg/templates"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
 	"github.com/projectdiscovery/nuclei/v3/pkg/utils"
+	"github.com/projectdiscovery/nuclei/v3/pkg/utils/httpbody"
 	"github.com/projectdiscovery/nuclei/v3/pkg/utils/stats"
 	"github.com/projectdiscovery/nuclei/v3/pkg/utils/yaml"
 	"github.com/projectdiscovery/retryablehttp-go"
@@ -675,6 +677,7 @@ func (r *Runner) RunEnumeration() error {
 		Catalog:             r.catalog,
 		IssuesClient:        r.issuesClient,
 		RateLimiter:         r.rateLimiter,
+		RequestBodyBudget:   httpbody.NewBudget(int64(r.options.MaxRequestBodyInFlight)),
 		Interactsh:          r.interactsh,
 		ProjectFile:         r.projectFile,
 		Browser:             r.browser,
@@ -734,6 +737,9 @@ func (r *Runner) RunEnumeration() error {
 	if r.options.HostBackoff {
 		executorOpts.HostBackoff = hostbackoff.New(hostbackoff.Config{Max: r.options.HostBackoffMax})
 	}
+	if r.options.AutoCalibrate {
+		executorOpts.CatchAll = catchall.New(0)
+	}
 
 	executorEngine := core.New(r.options)
 	executorEngine.SetExecuterOptions(executorOpts)
@@ -1072,6 +1078,7 @@ func (r *Runner) displayExecutionInfo(store *loader.Store) {
 	stats.DisplayAsWarning(httpProtocol.SetThreadToCountZero)
 	stats.ForceDisplayWarning(templates.SkippedUnverifiedTemplateStats)
 	stats.ForceDisplayWarning(templates.SkippedRequestSignatureTemplateStats)
+	stats.ForceDisplayWarning(templates.SkippedWorkflowStepStats)
 
 	cfg := config.DefaultConfig
 

internal/runner/runner_test.go

@@ -6,11 +6,17 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"strconv"
+	"sync/atomic"
 	"testing"
 	"time"
 
+	"github.com/miekg/dns"
+	"github.com/projectdiscovery/gologger"
 	"github.com/stretchr/testify/require"
 
+	"github.com/projectdiscovery/nuclei/v3/pkg/input"
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/provider"
 	"github.com/projectdiscovery/nuclei/v3/pkg/model/types/severity"
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
@@ -197,3 +203,63 @@ func TestNewInteractshHTTPClient(t *testing.T) {
 	require.NotNil(t, proxyURL)
 	require.Equal(t, "http://127.0.0.1:9", proxyURL.String())
 }
+
+func TestInitializeTemplatesHTTPInputUsesResolvers(t *testing.T) {
+	for _, key := range []string{"HTTP_PROXY", "http_proxy", "HTTPS_PROXY", "https_proxy"} {
+		t.Setenv(key, "")
+	}
+
+	listener, err := net.ListenPacket("udp", "127.0.0.1:0")
+	require.NoError(t, err)
+	queries := new(atomic.Int32)
+	server := &dns.Server{PacketConn: listener, Handler: dns.HandlerFunc(func(writer dns.ResponseWriter, request *dns.Msg) {
+		queries.Add(1)
+		response := new(dns.Msg).SetReply(request)
+		for _, question := range request.Question {
+			if question.Qtype == dns.TypeA {
+				response.Answer = append(response.Answer, &dns.A{Hdr: dns.RR_Header{Name: question.Name, Rrtype: dns.TypeA, Class: dns.ClassINET}, A: net.ParseIP("127.0.0.1")})
+			}
+		}
+		_ = writer.WriteMsg(response)
+	})}
+	started := make(chan struct{})
+	server.NotifyStartedFunc = func() { close(started) }
+	done := make(chan error, 1)
+	go func() { done <- server.ActivateAndServe() }()
+	<-started
+	t.Cleanup(func() { require.NoError(t, server.Shutdown()); require.NoError(t, <-done) })
+
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	}))
+	t.Cleanup(srv.Close)
+
+	resolverFile := filepath.Join(t.TempDir(), "resolv.conf")
+	require.NoError(t, os.WriteFile(resolverFile, nil, 0o600))
+	t.Setenv("RESOLVERS_PATH", resolverFile)
+
+	options := &types.Options{
+		ExecutionId:           t.Name(),
+		Timeout:               5,
+		BulkSize:              1,
+		InternalResolversList: []string{listener.LocalAddr().String()},
+	}
+	require.NoError(t, protocolstate.Init(options))
+	t.Cleanup(func() { protocolstate.Close(options.ExecutionId) })
+
+	target := "probe.nuclei.test:" + strconv.Itoa(srv.Listener.Addr().(*net.TCPAddr).Port)
+	r := &Runner{
+		options:       options,
+		inputProvider: provider.NewSimpleInputProviderWithUrls(options.ExecutionId, target),
+		Logger:        &gologger.Logger{},
+	}
+
+	hm, err := r.initializeTemplatesHTTPInput()
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = hm.Close() })
+
+	probed, ok := hm.Get(input.ProbeKey(target, ""))
+	require.True(t, ok, "the probe should resolve the target through the -r resolver")
+	require.Equal(t, "http://"+target, string(probed))
+	require.Positive(t, queries.Load())
+}

internal/runner/templates.go

@@ -6,13 +6,15 @@ import (
 	"sort"
 	"strings"
 
-	"github.com/alecthomas/chroma/quick"
+	"github.com/alecthomas/chroma/v2/quick"
 	"github.com/logrusorgru/aurora/v4"
 	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/config"
 	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader"
+	"github.com/projectdiscovery/nuclei/v3/pkg/model"
 
 	"github.com/projectdiscovery/nuclei/v3/pkg/templates"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/projectdiscovery/nuclei/v3/pkg/utils"
 	"github.com/projectdiscovery/nuclei/v3/pkg/utils/json"
 )
 
@@ -38,12 +40,17 @@ func (r *Runner) verboseTemplate(tpl *templates.Template) {
 		tpl.Info.SeverityHolder.Severity))
 }
 
+// listedTemplate names its fields like a result event, so a -jsonl listing
+// joins with scan results on the same keys.
+type listedTemplate struct {
+	Template     string     `json:"template,omitempty"`
+	TemplateID   string     `json:"template-id"`
+	TemplatePath string     `json:"template-path"`
+	Info         model.Info `json:"info"`
+}
+
 func (r *Runner) listAvailableStoreTemplates(store *loader.Store) {
-	r.Logger.Print().Msgf(
-		"\nListing available %v nuclei templates for %v",
-		config.DefaultConfig.TemplateVersion,
-		config.DefaultConfig.TemplatesDirectory,
-	)
+	r.listingHeader("templates")
 	// order templates alphabetically by path
 	templates := store.Templates()
 	sort.Slice(templates, func(i, j int) bool {
@@ -51,6 +58,10 @@ func (r *Runner) listAvailableStoreTemplates(store *loader.Store) {
 	})
 
 	for _, tpl := range templates {
+		if r.options.JSONL && !r.options.TemplateDisplay {
+			r.listTemplateJSON(tpl)
+			continue
+		}
 		if hasExtraFlags(r.options) {
 			if r.options.TemplateDisplay {
 				colorize := !r.options.NoColor
@@ -78,12 +89,36 @@ func (r *Runner) listAvailableStoreTemplates(store *loader.Store) {
 	}
 }
 
-func (r *Runner) listAvailableTags(tagsMap map[string]int) {
+func (r *Runner) listTemplateJSON(tpl *templates.Template) {
+	path, _ := utils.TemplatePathURL(tpl.Path, tpl.ID, "")
+	marshalled, err := json.Marshal(listedTemplate{
+		Template:     path,
+		TemplateID:   tpl.ID,
+		TemplatePath: tpl.Path,
+		Info:         tpl.Info,
+	})
+	if err != nil {
+		r.Logger.Error().Msgf("Could not marshal the template %s: %s", tpl.Path, err)
+		return
+	}
+	r.Logger.Print().Msgf("%s", marshalled)
+}
+
+// listingHeader is skipped for -jsonl, where every line must parse as JSON.
+func (r *Runner) listingHeader(what string) {
+	if r.options.JSONL {
+		return
+	}
 	r.Logger.Print().Msgf(
-		"\nListing available %v nuclei tags for %v",
+		"\nListing available %v nuclei %s for %v",
 		config.DefaultConfig.TemplateVersion,
+		what,
 		config.DefaultConfig.TemplatesDirectory,
 	)
+}
+
+func (r *Runner) listAvailableTags(tagsMap map[string]int) {
+	r.listingHeader("tags")
 
 	type kv struct {
 		Key   string `json:"tag"`

internal/runner/templates_test.go

@@ -0,0 +1,76 @@
+package runner
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/projectdiscovery/gologger"
+	"github.com/projectdiscovery/gologger/formatter"
+	"github.com/projectdiscovery/gologger/levels"
+	"github.com/projectdiscovery/nuclei/v3/internal/tests/testutils"
+	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/config"
+	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/disk"
+	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader"
+	"github.com/projectdiscovery/nuclei/v3/pkg/templates"
+	"github.com/projectdiscovery/nuclei/v3/pkg/utils/json"
+	"github.com/stretchr/testify/require"
+)
+
+const listedTemplateYAML = `id: listed-template
+info:
+  name: Listed Template
+  author: pdteam
+  severity: info
+  tags: listing
+http:
+  - method: GET
+    path:
+      - "{{BaseURL}}"
+`
+
+func TestTemplateListWritesJSONLines(t *testing.T) {
+	root := t.TempDir()
+	cfg := config.DefaultConfig
+	oldRoot := cfg.TemplatesDirectory
+	t.Cleanup(func() { cfg.SetTemplatesDir(oldRoot) })
+	cfg.SetTemplatesDir(root)
+
+	path := filepath.Join(root, "http", "listed-template.yaml")
+	require.NoError(t, os.MkdirAll(filepath.Dir(path), 0o755))
+	require.NoError(t, os.WriteFile(path, []byte(listedTemplateYAML), 0o600))
+
+	writer := &ignoreFileLogWriter{}
+	logger := &gologger.Logger{}
+	logger.SetFormatter(formatter.NewCLI(true))
+	logger.SetWriter(writer)
+	logger.SetMaxLevel(levels.LevelInfo)
+
+	options := testutils.DefaultOptions.Copy()
+	options.ExecutionId = t.Name()
+	options.Logger = logger
+	options.Templates = []string{path}
+	options.TemplateList = true
+	options.JSONL = true
+	testutils.Init(options)
+	t.Cleanup(func() { testutils.Cleanup(options) })
+
+	executerOpts := testutils.NewMockExecuterOptions(options, nil)
+	executerOpts.Parser = templates.NewParser()
+	store, err := loader.New(loader.NewConfig(options, disk.NewCatalog(root), executerOpts))
+	require.NoError(t, err)
+	require.NoError(t, store.LoadTemplatesOnlyMetadata())
+
+	require.Len(t, store.Templates(), 1)
+
+	r := &Runner{options: options, Logger: logger}
+	r.listAvailableStoreTemplates(store)
+
+	require.Len(t, writer.records, 1, "JSONL output carries no banner line")
+	var listed map[string]any
+	require.NoError(t, json.Unmarshal([]byte(strings.TrimSpace(writer.records[0].message)), &listed))
+	require.Equal(t, "listed-template", listed["template-id"])
+	require.Equal(t, filepath.Join("http", "listed-template.yaml"), listed["template"])
+	require.Equal(t, "Listed Template", listed["info"].(map[string]any)["name"])
+}

internal/server/nuclei_sdk.go

@@ -33,6 +33,7 @@ import (
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/interactsh"
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/utils/excludematchers"
 	browserEngine "github.com/projectdiscovery/nuclei/v3/pkg/protocols/headless/engine"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/http/catchall"
 	"github.com/projectdiscovery/nuclei/v3/pkg/reporting"
 	"github.com/projectdiscovery/nuclei/v3/pkg/templates"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
@@ -110,6 +111,9 @@ func newNucleiExecutor(opts *NucleiExecutorOptions) (*nucleiExecutor, error) {
 	if opts.Options.HostBackoff {
 		executorOpts.HostBackoff = hostbackoff.New(hostbackoff.Config{Max: opts.Options.HostBackoffMax})
 	}
+	if opts.Options.AutoCalibrate {
+		executorOpts.CatchAll = catchall.New(0)
+	}
 
 	executorEngine := core.New(opts.Options)
 	executorEngine.SetExecuterOptions(executorOpts)

internal/tests/integration/http_test.go

@@ -102,6 +102,7 @@ var httpTestcases = []integrationCase{
 	{Path: "protocols/http/raw-unsafe-path-single-slash.yaml", TestCase: &httpRawUnsafePathSingleSlash{}},
 	{Path: "protocols/http/disable-http-cache.yaml", TestCase: &httpDisableCache{}},
 	{Path: "protocols/http/http-cache.yaml", TestCase: &httpCache{}},
+	{Path: "protocols/http/get.yaml", TestCase: &httpExcludeHostsFileComments{}},
 }
 
 type httpMultiVarSharing struct{}
@@ -1983,3 +1984,59 @@ func (h *httpDisableCache) Execute(filePath string) error {
 
 	return nil
 }
+
+// ensure that comments in an -exclude-hosts file are ignored
+type httpExcludeHostsFileComments struct{}
+
+// Execute executes a test case and returns an error if occurred
+func (h *httpExcludeHostsFileComments) Execute(filePath string) error {
+	router := httprouter.New()
+	router.GET("/", func(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
+		_, _ = fmt.Fprintf(w, "This is test matcher text")
+	})
+	ts := httptest.NewServer(router)
+	defer ts.Close()
+
+	excludeHosts := func(content string) ([]string, error) {
+		file, err := os.CreateTemp("", "exclude-hosts-*.txt")
+		if err != nil {
+			return nil, err
+		}
+		defer func() { _ = os.Remove(file.Name()) }()
+		_, err = file.WriteString(content)
+		_ = file.Close()
+		if err != nil {
+			return nil, err
+		}
+
+		return testutils.RunNucleiTemplateAndGetResults(filePath, ts.URL, debug, "-eh", file.Name())
+	}
+
+	// a comment line is not a host, even when it reads as an invalid regex
+	results, err := excludeHosts("# hosts out of scope (see ticket\n203.0.113.10\n")
+	if err != nil {
+		return fmt.Errorf("comment line: %w", err)
+	}
+	if err := expectResultsCount(results, 1); err != nil {
+		return fmt.Errorf("comment line: %w", err)
+	}
+
+	// a trailing comment does not stop the host from being excluded
+	results, err = excludeHosts("127.0.0.1 # test server\n")
+	if err != nil {
+		return fmt.Errorf("trailing comment: %w", err)
+	}
+	if err := expectResultsCount(results, 0); err != nil {
+		return fmt.Errorf("trailing comment: %w", err)
+	}
+
+	// comma separated hosts are still split when passed on the command line
+	results, err = testutils.RunNucleiTemplateAndGetResults(filePath, ts.URL, debug, "-eh", "203.0.113.10, 127.0.0.1")
+	if err != nil {
+		return fmt.Errorf("comma separated: %w", err)
+	}
+	if err := expectResultsCount(results, 0); err != nil {
+		return fmt.Errorf("comma separated: %w", err)
+	}
+	return nil
+}

internal/tests/integration/javascript_ipmi_test.go

@@ -0,0 +1,89 @@
+//go:build integration
+// +build integration
+
+package integration_test
+
+import (
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/ory/dockertest/v3"
+)
+
+// ipmiSimSetup runs OpenIPMI's BMC simulator with an anonymous user,
+// ADMIN/ADMIN and root/calvin, and cipher suite 0 enabled.
+const ipmiSimSetup = `apt-get update -qq && apt-get install -y -qq --no-install-recommends openipmi >/dev/null && mkdir -p /etc/ipmi && cat > /etc/ipmi/lan.conf <<'EOF'
+name "bmc"
+set_working_mc 0x20
+  startlan 1
+    addr 0.0.0.0 623
+    priv_limit admin
+    allowed_auths_callback none md2 md5 straight
+    allowed_auths_user none md2 md5 straight
+    allowed_auths_operator none md2 md5 straight
+    allowed_auths_admin none md2 md5 straight
+    guid a123456789abcdefa123456789abcdef
+  endlan
+  user 1 true  ""      ""       user  10 none md2 md5 straight
+  user 2 true  "ADMIN" "ADMIN"  admin 10 none md2 md5 straight
+  user 3 true  "root"  "calvin" admin 10 none md2 md5 straight
+EOF
+printf 'mc_setbmc 0x20\nmc_add 0x20 0 no-device-sdrs 0x23 9 8 0x9f 0x1291 0xf02 persist_sdr\nmc_enable 0x20\n' > /etc/ipmi/emu.cmd
+exec ipmi_sim -c /etc/ipmi/lan.conf -f /etc/ipmi/emu.cmd -n`
+
+type javascriptIPMI struct{}
+
+func (j *javascriptIPMI) Execute(filePath string) error {
+	pool, err := dockertest.NewPool("")
+	if err != nil {
+		return fmt.Errorf("could not create docker pool: %w", err)
+	}
+	if err := pool.Client.Ping(); err != nil {
+		return fmt.Errorf("could not connect to Docker: %w", err)
+	}
+	resource, err := pool.RunWithOptions(&dockertest.RunOptions{
+		Repository:   "debian",
+		Tag:          "bookworm-slim",
+		Platform:     "linux/amd64",
+		Cmd:          []string{"sh", "-c", ipmiSimSetup},
+		ExposedPorts: []string{"623/udp"},
+	})
+	if err != nil {
+		return fmt.Errorf("could not start ipmi simulator: %w", err)
+	}
+	defer purge(pool, resource)
+
+	address := net.JoinHostPort("127.0.0.1", resource.GetPort("623/udp"))
+	if err := waitForServiceCheck(address, 3*time.Minute, rmcpPingCheck); err != nil {
+		return err
+	}
+	results, err := runSignedNucleiTemplateAndGetResults(filePath, address, debug)
+	if err != nil {
+		return err
+	}
+	return expectResultsCount(results, 1)
+}
+
+// rmcpPingCheck waits for an answer to an RMCP presence ping, since the
+// port is udp and cannot be probed with a connect.
+func rmcpPingCheck(address string) error {
+	conn, err := net.Dial("udp", address)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = conn.Close() }()
+	if _, err := conn.Write([]byte{0x06, 0x00, 0xff, 0x06, 0x00, 0x00, 0x11, 0xbe, 0x80, 0x00, 0x00, 0x00}); err != nil {
+		return err
+	}
+	_ = conn.SetReadDeadline(time.Now().Add(time.Second))
+	reply := make([]byte, 64)
+	n, err := conn.Read(reply)
+	if err != nil {
+		return err
+	}
+	if n < 9 || reply[8] != 0x40 {
+		return fmt.Errorf("unexpected rmcp reply")
+	}
+	return nil
+}

internal/tests/integration/javascript_test.go

@@ -46,6 +46,7 @@ var jsTestcases = []integrationCase{
 	{Path: "protocols/javascript/http-get.yaml", TestCase: &javascriptHTTPGet{}},
 	{Path: "protocols/javascript/http-client-flow.yaml", TestCase: &javascriptHTTPClientFlow{}},
 	{Path: "protocols/javascript/http-denied.yaml", TestCase: &javascriptHTTPDenied{}},
+	{Path: "protocols/javascript/ipmi.yaml", TestCase: &javascriptIPMI{}, DisableOn: javascriptDockerDisabled, Serial: true},
 	{Path: "protocols/javascript/rsync-test.yaml", TestCase: &javascriptRsyncTest{}, DisableOn: javascriptDockerDisabled, Serial: true},
 	{Path: "protocols/javascript/vnc-pass-brute.yaml", TestCase: &javascriptVncPassBrute{}, DisableOn: javascriptDockerDisabled, Serial: true},
 	{Path: "protocols/javascript/postgres-pass-brute.yaml", TestCase: &javascriptPostgresPassBrute{}, DisableOn: javascriptDockerDisabled, Serial: true},

internal/tests/integration/testdata/protocols/javascript/ipmi.yaml

@@ -0,0 +1,46 @@
+id: ipmi-checks
+
+info:
+  name: IPMI Checks
+  author: pdteam
+  severity: info
+
+javascript:
+  - code: |
+      const ipmi = require('nuclei/ipmi');
+      const caps = ipmi.GetAuthCapabilities(Host, Port);
+      const root = ipmi.GetRAKPHash(Host, Port, 'root');
+
+      // cipher suite 0 lets a wrong password in
+      const anyPassword = new ipmi.Client();
+      const cipherZero = anyPassword.Login(Host, Port, 'ADMIN', 'wrong', 0);
+      anyPassword.Close();
+
+      // an encrypted, signed session, then Get Device ID and admin privilege
+      const client = new ipmi.Client();
+      client.Login(Host, Port, 'ADMIN', 'ADMIN', 3);
+      const device = client.Command(0x06, 0x01, []);
+      const admin = client.Command(0x06, 0x3b, [0x04]);
+      client.Close();
+      const manufacturer = device.Data[6] | device.Data[7] << 8 | device.Data[8] << 16;
+
+      let wrongRejected = false;
+      try { new ipmi.Client().Login(Host, Port, 'ADMIN', 'wrong', 3); } catch (e) { wrongRejected = true; }
+
+      ipmi.Ping(Host, Port) && caps.IPMI20 && caps.AnonymousLogin &&
+        ipmi.GetCipherSuites(Host, Port).includes(0) &&
+        ipmi.GetSystemGUID(Host, Port).length == 32 &&
+        ipmi.FindRAKPPassword(root, ['admin', 'calvin']) == 'calvin' &&
+        !ipmi.CheckRAKPPassword(root, 'admin') &&
+        cipherZero && wrongRejected &&
+        device.CompletionCode == 0 && manufacturer == 4753 &&
+        admin.CompletionCode == 0;
+
+    args:
+      Host: "{{Host}}"
+      Port: "623"
+
+    matchers:
+      - type: dsl
+        dsl:
+          - "success == true"

lib/multi.go

@@ -39,12 +39,14 @@ func createEphemeralObjects(ctx context.Context, base *NucleiEngine, opts *types
 		Catalog:      base.catalog,
 		IssuesClient: base.rc,
 		RateLimiter:  base.rateLimiter,
-		Interactsh:   base.interactshClient,
-		Colorizer:    aurora.New(aurora.WithColors(true)),
-		ResumeCfg:    types.NewResumeCfg(),
-		Parser:       base.parser,
-		Browser:      base.browserInstance,
-		DoNotCache:   opts.DoNotCacheTemplates,
+
+		RequestBodyBudget: base.executerOpts.RequestBodyBudget,
+		Interactsh:        base.interactshClient,
+		Colorizer:         aurora.New(aurora.WithColors(true)),
+		ResumeCfg:         types.NewResumeCfg(),
+		Parser:            base.parser,
+		Browser:           base.browserInstance,
+		DoNotCache:        opts.DoNotCacheTemplates,
 	}
 	if base.interactshClient != nil {
 		u.executerOpts.InteractshScope = base.interactshClient.NewRequestScope()

lib/sdk_private.go

@@ -36,6 +36,7 @@ import (
 	"github.com/projectdiscovery/nuclei/v3/pkg/templates"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
 	nucleiUtils "github.com/projectdiscovery/nuclei/v3/pkg/utils"
+	"github.com/projectdiscovery/nuclei/v3/pkg/utils/httpbody"
 	"github.com/projectdiscovery/ratelimit"
 	pdcpauth "github.com/projectdiscovery/utils/auth/pdcp"
 )
@@ -279,6 +280,7 @@ func (e *NucleiEngine) init(ctx context.Context) error {
 		Catalog:            e.catalog,
 		IssuesClient:       e.rc,
 		RateLimiter:        e.rateLimiter,
+		RequestBodyBudget:  httpbody.NewBudget(int64(e.opts.MaxRequestBodyInFlight)),
 		Interactsh:         e.interactshClient,
 		Colorizer:          aurora.New(aurora.WithColors(true)),
 		ResumeCfg:          types.NewResumeCfg(),
@@ -358,6 +360,9 @@ func (e *NucleiEngine) init(ctx context.Context) error {
 
 	httpxOptions := httpx.DefaultOptions
 	httpxOptions.Timeout = 5 * time.Second
+	if len(e.opts.InternalResolversList) > 0 {
+		httpxOptions.Resolvers = e.opts.InternalResolversList
+	}
 	if client, err := httpx.New(&httpxOptions); err != nil {
 		return err
 	} else {

pkg/catalog/loader/ai_loader.go

@@ -7,18 +7,22 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
 
-	"github.com/alecthomas/chroma/quick"
+	"github.com/alecthomas/chroma/v2/quick"
 	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/config"
 	"github.com/projectdiscovery/nuclei/v3/pkg/types"
-	"github.com/projectdiscovery/retryablehttp-go"
 	pdcpauth "github.com/projectdiscovery/utils/auth/pdcp"
 	"github.com/projectdiscovery/utils/errkit"
 )
 
-const (
+var (
 	aiTemplateGeneratorAPIEndpoint = "https://api.projectdiscovery.io/v1/template/ai"
+	// aiTemplateHTTPClient verifies TLS, since the request carries the PDCP API key.
+	aiTemplateHTTPClient = &http.Client{}
+	// aiTemplateIDRegex keeps the template file name inside the pdcp directory.
+	aiTemplateIDRegex = regexp.MustCompile(`^[A-Za-z0-9_-]+$`)
 )
 
 type AITemplateResponse struct {
@@ -112,7 +116,7 @@ func generateAITemplate(prompt string) (string, string, error) {
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set(pdcpauth.ApiKeyHeaderName, creds.APIKey)
 
-	resp, err := retryablehttp.DefaultClient().Do(req)
+	resp, err := aiTemplateHTTPClient.Do(req)
 	if err != nil {
 		return "", "", errkit.Newf("Failed to send HTTP request: %v", err)
 	}
@@ -138,5 +142,9 @@ func generateAITemplate(prompt string) (string, string, error) {
 		return "", "", errkit.Newf("Failed to generate template")
 	}
 
+	if !aiTemplateIDRegex.MatchString(result.TemplateID) {
+		return "", "", errkit.Newf("Invalid template ID in API response: %q", result.TemplateID)
+	}
+
 	return result.Completion, result.TemplateID, nil
 }

pkg/catalog/loader/ai_loader_test.go

@@ -0,0 +1,55 @@
+package loader
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func newAITemplateServer(t *testing.T, templateID string, gotKey *atomic.Value) {
+	srv := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotKey.Store(r.Header.Get("X-Api-Key"))
+		_ = json.NewEncoder(w).Encode(map[string]string{
+			"completion":  "id: test\n",
+			"template_id": templateID,
+		})
+	}))
+	t.Cleanup(srv.Close)
+
+	oldEndpoint, oldClient := aiTemplateGeneratorAPIEndpoint, aiTemplateHTTPClient
+	t.Cleanup(func() { aiTemplateGeneratorAPIEndpoint, aiTemplateHTTPClient = oldEndpoint, oldClient })
+	aiTemplateGeneratorAPIEndpoint = srv.URL
+	t.Setenv("PDCP_API_KEY", "test-key")
+	if templateID != "" {
+		// Trust the test certificate, to check the template_id only.
+		aiTemplateHTTPClient = srv.Client()
+	}
+}
+
+func TestAITemplateVerifiesTLS(t *testing.T) {
+	var gotKey atomic.Value
+	newAITemplateServer(t, "", &gotKey)
+
+	_, _, err := generateAITemplate("check for exposed admin panels")
+	require.ErrorContains(t, err, "certificate")
+	require.Nil(t, gotKey.Load(), "the API key went to an untrusted server")
+}
+
+func TestAITemplateRejectsUnsafeID(t *testing.T) {
+	for _, id := range []string{"../../.config/nuclei/config", "a/b", `a\b`, "a.b", "a b"} {
+		var gotKey atomic.Value
+		newAITemplateServer(t, id, &gotKey)
+		_, _, err := generateAITemplate("check for exposed admin panels")
+		require.Error(t, err, id)
+	}
+
+	var gotKey atomic.Value
+	newAITemplateServer(t, "Abc-123_x", &gotKey)
+	_, templateID, err := generateAITemplate("check for exposed admin panels")
+	require.NoError(t, err)
+	require.Equal(t, "Abc-123_x", templateID)
+}

pkg/catalog/loader/loader.go

@@ -631,10 +631,10 @@ func (store *Store) noteMissingCapabilities(templatePath string, missingCaps []t
 // erroring out on discovering any faulty templates.
 func (store *Store) ValidateTemplates() error {
 	templatePaths, errs := store.config.Catalog.GetTemplatesPath(store.finalTemplates)
-	store.logErroredTemplates(errs)
+	notFound := store.logErroredTemplates(errs)
 
 	workflowPaths, errs := store.config.Catalog.GetTemplatesPath(store.finalWorkflows)
-	store.logErroredTemplates(errs)
+	notFound += store.logErroredTemplates(errs)
 
 	templatePathsMap := make(map[string]struct{}, len(templatePaths))
 	for _, path := range templatePaths {
@@ -646,7 +646,8 @@ func (store *Store) ValidateTemplates() error {
 		workflowPathsMap[path] = struct{}{}
 	}
 
-	if store.areTemplatesValid(templatePathsMap) && store.areWorkflowsValid(workflowPathsMap) {
+	// a path that can't be resolved is not validated, so it can't count as valid
+	if store.areTemplatesValid(templatePathsMap) && store.areWorkflowsValid(workflowPathsMap) && notFound == 0 {
 		return nil
 	}
 
@@ -1056,10 +1057,15 @@ func workflowContainsProtocol(workflow []*workflows.WorkflowTemplate) bool {
 	return false
 }
 
-func (s *Store) logErroredTemplates(erred map[string]error) {
+// logErroredTemplates logs the templates that could not be found and returns
+// how many of them were not handled by the NotFoundCallback.
+func (s *Store) logErroredTemplates(erred map[string]error) int {
+	notFound := 0
 	for template, err := range erred {
 		if s.NotFoundCallback == nil || !s.NotFoundCallback(template) {
 			s.logger.Error().Msgf("Could not find template '%s': %s", template, err)
+			notFound++
 		}
 	}
+	return notFound
 }

pkg/catalog/loader/loader_test.go

@@ -176,25 +176,8 @@ func TestLoadTemplatesOnlyMetadataLogsCachedTemplateParseErrors(t *testing.T) {
 	require.Contains(t, output.String(), "Could not load template")
 }
 
-func TestValidateTemplatesRejectsRuntimeCompilationError(t *testing.T) {
-	templatePath := filepath.Join(t.TempDir(), "invalid-regex-group.yaml")
-	require.NoError(t, os.WriteFile(templatePath, []byte(`id: invalid-regex-group
-
-info:
-  name: Invalid Regex Group
-  author: pdteam
-  severity: info
-
-http:
-  - method: GET
-    path:
-      - "{{BaseURL}}"
-    extractors:
-      - type: regex
-        group: -1
-        regex:
-          - "(a)(b)"
-`), 0o600))
+func newValidateStore(t *testing.T, executionID, templatePath string) (*Store, *bytes.Buffer) {
+	t.Helper()
 
 	options := testutils.DefaultOptions.Copy()
 	var output bytes.Buffer
@@ -203,7 +186,7 @@ http:
 	logger.SetWriter(&utils.CaptureWriter{Buffer: &output})
 	logger.SetMaxLevel(levels.LevelDebug)
 	options.Logger = logger
-	options.ExecutionId = "loader-invalid-regex-group"
+	options.ExecutionId = executionID
 	options.Templates = []string{templatePath}
 	options.Validate = true
 	options.TemplateLoadingConcurrency = 1
@@ -226,10 +209,50 @@ http:
 
 	store, err := New(NewConfig(options, catalog, executerOpts))
 	require.NoError(t, err)
+	return store, &output
+}
+
+func TestValidateTemplatesRejectsRuntimeCompilationError(t *testing.T) {
+	templatePath := filepath.Join(t.TempDir(), "invalid-regex-group.yaml")
+	require.NoError(t, os.WriteFile(templatePath, []byte(`id: invalid-regex-group
+
+info:
+  name: Invalid Regex Group
+  author: pdteam
+  severity: info
+
+http:
+  - method: GET
+    path:
+      - "{{BaseURL}}"
+    extractors:
+      - type: regex
+        group: -1
+        regex:
+          - "(a)(b)"
+`), 0o600))
+
+	store, output := newValidateStore(t, "loader-invalid-regex-group", templatePath)
 	require.Error(t, store.ValidateTemplates())
 	require.Contains(t, output.String(), "regex extractor group must be >= 0")
 }
 
+func TestValidateTemplatesRejectsMissingTemplatePath(t *testing.T) {
+	templatePath := filepath.Join(t.TempDir(), "no-such-templates")
+
+	store, output := newValidateStore(t, "loader-missing-template-path", templatePath)
+	require.Error(t, store.ValidateTemplates())
+	require.Contains(t, output.String(), "Could not find template")
+}
+
+func TestValidateTemplatesAcceptsMissingPathHandledByCallback(t *testing.T) {
+	templatePath := filepath.Join(t.TempDir(), "no-such-templates")
+
+	store, _ := newValidateStore(t, "loader-missing-path-callback", templatePath)
+	store.NotFoundCallback = func(string) bool { return true }
+	require.NoError(t, store.ValidateTemplates())
+}
+
 func TestRemoteTemplates(t *testing.T) {
 	catalog := disk.NewCatalog("")
 

pkg/core/workflow_execute.go

@@ -3,6 +3,7 @@ package core
 import (
 	"fmt"
 	"net/http/cookiejar"
+	"sync"
 	"sync/atomic"
 
 	"github.com/projectdiscovery/gologger"
@@ -32,22 +33,45 @@ func (e *Engine) executeWorkflow(ctx *scan.ScanContext, w *workflows.Workflow) b
 		templateThreads++
 	}
 	swg, _ := syncutil.New(syncutil.WithSize(templateThreads))
+	// pending tracks every started step until it returns. swg only limits
+	// concurrency and its slots can be released early, so completion is
+	// tracked here instead.
+	var pending sync.WaitGroup
 
 	for _, template := range w.Workflows {
 		newCtx := scan.NewScanContext(ctx.Context(), ctx.Input.Clone())
-		if err := e.runWorkflowStep(template, newCtx, results, swg, w); err != nil {
+		// Root steps do not own a waitgroup slot.
+		if err := e.runWorkflowStep(template, newCtx, results, swg, &pending, w, nil); err != nil {
 			gologger.Warning().Msgf(workflowStepExecutionError, template.Template, err)
 		}
 	}
 
-	swg.Wait()
+	pending.Wait()
 
 	return results.Load()
 }
 
+// slotRelease returns a func that gives back one swg slot. It is safe to call
+// from several goroutines and several times; only the first call releases.
+func slotRelease(swg *syncutil.AdaptiveWaitGroup) func() {
+	var once sync.Once
+	return func() {
+		once.Do(swg.Done)
+	}
+}
+
 // runWorkflowStep runs a workflow step for the workflow. It executes the workflow
 // in a recursive manner running all subtemplates and matchers.
-func (e *Engine) runWorkflowStep(template *workflows.WorkflowTemplate, ctx *scan.ScanContext, results *atomic.Bool, swg *syncutil.AdaptiveWaitGroup, w *workflows.Workflow) error {
+//
+// releaseSlot, when non-nil, releases the AdaptiveWaitGroup slot held by the
+// goroutine that is running this step. It must be called before this step
+// blocks on swg.AddWithContext for child steps; otherwise every in-flight
+// parent can hold a slot while waiting for another, which deadlocks when the
+// number of matching nested steps reaches TemplateThreads (see #8074).
+//
+// pending is incremented for every child step before it starts, and each child
+// calls Done when it returns, so the root can wait for the whole tree.
+func (e *Engine) runWorkflowStep(template *workflows.WorkflowTemplate, ctx *scan.ScanContext, results *atomic.Bool, swg *syncutil.AdaptiveWaitGroup, pending *sync.WaitGroup, w *workflows.Workflow, releaseSlot func()) error {
 	var firstMatched bool
 	var err error
 	var mainErr error
@@ -131,18 +155,25 @@ func (e *Engine) runWorkflowStep(template *workflows.WorkflowTemplate, ctx *scan
 						continue
 					}
 
+					// Free this step's slot before blocking on child acquires.
+					if releaseSlot != nil {
+						releaseSlot()
+					}
 					for _, subtemplate := range matcher.Subtemplates {
 						if err := swg.AddWithContext(ctx.Context()); err != nil {
 							return
 						}
+						pending.Add(1)
 
 						go func(subtemplate *workflows.WorkflowTemplate) {
-							defer swg.Done()
+							defer pending.Done()
+							release := slotRelease(swg)
+							defer release()
 
 							// create a new context with the same input but with unset callbacks
 							// clone the Input so that other parallel executions won't overwrite the shared variables when subsequent templates are running
 							subCtx := scan.NewScanContext(ctx.Context(), ctx.Input.Clone())
-							if err := e.runWorkflowStep(subtemplate, subCtx, results, swg, w); err != nil {
+							if err := e.runWorkflowStep(subtemplate, subCtx, results, swg, pending, w, release); err != nil {
 								gologger.Warning().Msgf(workflowStepExecutionError, subtemplate.Template, err)
 							}
 						}(subtemplate)
@@ -162,18 +193,27 @@ func (e *Engine) runWorkflowStep(template *workflows.WorkflowTemplate, ctx *scan
 		return mainErr
 	}
 	if len(template.Subtemplates) > 0 && firstMatched {
+		// Free this step's slot before blocking on child acquires so nested
+		// matching steps cannot exhaust TemplateThreads and deadlock (#8074).
+		if releaseSlot != nil {
+			releaseSlot()
+		}
 		for _, subtemplate := range template.Subtemplates {
 			if err := swg.AddWithContext(ctx.Context()); err != nil {
 				return err
 			}
+			pending.Add(1)
 
 			go func(template *workflows.WorkflowTemplate) {
+				defer pending.Done()
+				release := slotRelease(swg)
+				defer release()
+
 				// create a new context with the same input but with unset callbacks
 				subCtx := scan.NewScanContext(ctx.Context(), ctx.Input.Clone())
-				if err := e.runWorkflowStep(template, subCtx, results, swg, w); err != nil {
+				if err := e.runWorkflowStep(template, subCtx, results, swg, pending, w, release); err != nil {
 					gologger.Warning().Msgf(workflowStepExecutionError, template.Template, err)
 				}
-				swg.Done()
 			}(subtemplate)
 		}
 	}

pkg/core/workflow_execute_test.go

@@ -303,6 +303,89 @@ func TestWorkflowsSameStepExecutersRefreshTemplateContext(t *testing.T) {
 	require.Equal(t, "foo", secondWhoami, "could not refresh workflow context into later executers in the same step")
 }
 
+func TestWorkflowNestedSubtemplatesDoNotDeadlockAtConcurrencyLimit(t *testing.T) {
+	// Repro for #8074: with TemplateThreads equal to the number of matching
+	// nested parents, each parent used to hold a waitgroup slot while calling
+	// AddWithContext for its children, so every slot was occupied by a parent
+	// waiting for another slot and the workflow never finished.
+	progressBar, _ := progress.NewStatsTicker(0, false, false, false, 0)
+	matchOutputs := []*output.InternalWrappedEvent{{
+		OperatorsResult: &operators.Result{},
+		Results:         []*output.ResultEvent{{}},
+	}}
+
+	const parents = 3
+	var entered atomic.Int32
+	allHolding := make(chan struct{})
+	releaseParents := make(chan struct{})
+	leafRuns := &atomic.Int32{}
+
+	leaf := &mockExecuter{result: true, executeScanHook: func(ctx *scan.ScanContext) {
+		leafRuns.Add(1)
+	}}
+	parentExec := &mockExecuter{
+		result:  true,
+		outputs: matchOutputs,
+		executeScanHook: func(ctx *scan.ScanContext) {
+			if entered.Add(1) == parents {
+				close(allHolding)
+			}
+			// Stay inside ExecuteWithResults so the parent still owns its
+			// waitgroup slot while every peer also holds one.
+			<-releaseParents
+		},
+	}
+	mkParent := func() *workflows.WorkflowTemplate {
+		return &workflows.WorkflowTemplate{
+			Executers: []*workflows.ProtocolExecuterPair{{
+				Executer: parentExec,
+				Options:  &protocols.ExecutorOptions{Progress: progressBar},
+			}},
+			Subtemplates: []*workflows.WorkflowTemplate{{
+				Executers: []*workflows.ProtocolExecuterPair{{
+					Executer: leaf,
+					Options:  &protocols.ExecutorOptions{Progress: progressBar},
+				}},
+			}},
+		}
+	}
+
+	workflow := &workflows.Workflow{
+		Options: &protocols.ExecutorOptions{Options: &types.Options{TemplateThreads: parents}},
+		Workflows: []*workflows.WorkflowTemplate{{
+			Executers: []*workflows.ProtocolExecuterPair{{
+				Executer: &mockExecuter{result: true, outputs: matchOutputs},
+				Options:  &protocols.ExecutorOptions{Progress: progressBar},
+			}},
+			Subtemplates: []*workflows.WorkflowTemplate{mkParent(), mkParent(), mkParent()},
+		}},
+	}
+
+	engine := &Engine{}
+	input := contextargs.NewWithInput(context.Background(), "https://test.com")
+	ctx := scan.NewScanContext(context.Background(), input)
+
+	done := make(chan bool, 1)
+	go func() {
+		done <- engine.executeWorkflow(ctx, workflow)
+	}()
+
+	select {
+	case <-allHolding:
+	case <-time.After(2 * time.Second):
+		t.Fatal("nested parents did not all acquire TemplateThreads slots")
+	}
+	close(releaseParents)
+
+	select {
+	case matched := <-done:
+		require.True(t, matched, "nested workflow should report a match")
+		require.EqualValues(t, parents, leafRuns.Load(), "each nested parent should run its leaf")
+	case <-time.After(3 * time.Second):
+		t.Fatal("nested workflow deadlocked at TemplateThreads == matching nested parents")
+	}
+}
+
 func TestWorkflowSubtemplatesUnblockCancelledAcquire(t *testing.T) {
 	progressBar, _ := progress.NewStatsTicker(0, false, false, false, 0)
 	var started atomic.Int32

pkg/fuzz/execute.go

@@ -155,23 +155,14 @@ func (rule *Rule) Execute(input *ExecuteRuleInput) (err error) {
 	baseInteractURLs := append([]string(nil), input.InteractURLs...)
 	if rule.generator == nil {
 		for _, component := range finalComponentList {
-			var dataKeys map[string]struct{}
-
 			optionVars := rule.options.Options.Vars.AsMap()
 			constants := rule.options.Constants
 			dataValues := rule.options.NewVariablesScope(baseValues, optionVars, constants)
-			// get vars from variables while replacing interactsh urls
+			// Render variables once, allocating their interactsh URLs. The
+			// output may contain runtime data, so it is never rendered again.
 			evaluation := rule.options.Variables.EvaluateWithInteractshScope(dataValues, rule.options.Interactsh)
-			evaluatedValues, interactURLs := evaluation.Values, evaluation.InteractURLs
-			input.Values, dataKeys = mergeFuzzValueLayers(
-				fuzzValueLayer{values: evaluatedValues, kind: fuzzValueTemplate},
-				fuzzValueLayer{values: baseValues, kind: fuzzValueData},
-				fuzzValueLayer{values: optionVars, kind: fuzzValueData},
-				fuzzValueLayer{values: constants, kind: fuzzValueData},
-			)
-			// Replace template-text interactsh markers without evaluating runtime values.
-			input.Values, interactURLs = rule.evaluateVarsWithInteractsh(input.Values, interactURLs, dataKeys)
-			input.InteractURLs = mergeInteractURLs(baseInteractURLs, interactURLs)
+			input.Values = generators.MergeMaps(evaluation.Values, baseValues, optionVars, constants)
+			input.InteractURLs = mergeInteractURLs(baseInteractURLs, evaluation.InteractURLs)
 
 			err := rule.executeRuleValues(input, component)
 			if err != nil {
@@ -240,15 +231,17 @@ func (rule *Rule) prepareGeneratorValues(values, baseValues map[string]interface
 	evaluation := rule.options.Variables.EvaluateWithInteractshScope(evaluationValues, rule.options.Interactsh)
 	evaluatedValues, interactURLs := evaluation.Values, evaluation.InteractURLs
 	inputValues, dataKeys := mergeFuzzValueLayers(
+		fuzzValueLayer{values: evaluatedValues, kind: fuzzValueData},
 		fuzzValueLayer{values: values, kind: fuzzValueTemplate},
-		fuzzValueLayer{values: evaluatedValues, kind: fuzzValueTemplate},
 		fuzzValueLayer{values: baseValues, kind: fuzzValueData},
 		fuzzValueLayer{values: optionVars, kind: fuzzValueData},
 		fuzzValueLayer{values: constants, kind: fuzzValueData},
 	)
 
 	// Generator values are template-authored payload definitions until this
-	// render. Runtime/base, CLI option, and constant values remain data.
+	// render. Rendered variables, runtime/base, CLI option, and constant
+	// values remain data. Payloads layer over variables so a payload that
+	// shares a variable's name is still rendered.
 	return rule.evaluateVarsWithInteractsh(inputValues, interactURLs, dataKeys)
 }
 
@@ -326,7 +319,7 @@ func (rule *Rule) evaluateVars(input string) (string, error) {
 func (rule *Rule) evaluateVarsWithInteractsh(data map[string]interface{}, interactshUrls []string, dataKeys map[string]struct{}) (map[string]interface{}, []string) {
 	// Check if Interactsh options are configured
 	if rule.options.Interactsh != nil {
-		data = maps.Clone(data)
+		rendered := maps.Clone(data)
 
 		interactshUrlsMap := make(map[string]struct{})
 		for _, url := range interactshUrls {
@@ -335,7 +328,8 @@ func (rule *Rule) evaluateVarsWithInteractsh(data map[string]interface{}, intera
 
 		interactshUrls = mapsutil.GetKeys(interactshUrlsMap)
 
-		// Iterate through template-text data to replace Interactsh URL markers.
+		// Render each template-text value against the unrendered input, so
+		// the result does not depend on map iteration order.
 		for k, v := range data {
 			if _, ok := dataKeys[k]; ok {
 				continue
@@ -349,7 +343,7 @@ func (rule *Rule) evaluateVarsWithInteractsh(data map[string]interface{}, intera
 				InteractURLs: interactshUrls,
 			})
 			if err == nil {
-				data[k] = got.Text
+				rendered[k] = got.Text
 				for _, url := range got.InteractURLs {
 					if _, ok := interactshUrlsMap[url]; ok {
 						continue
@@ -360,6 +354,8 @@ func (rule *Rule) evaluateVarsWithInteractsh(data map[string]interface{}, intera
 				}
 			}
 		}
+
+		data = rendered
 	}
 
 	return data, interactshUrls

pkg/fuzz/execute_values_test.go

@@ -0,0 +1,224 @@
+package fuzz
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/catalog/disk"
+	"github.com/projectdiscovery/nuclei/v3/pkg/fuzz/component"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/contextargs"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/generators"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/interactsh"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/variables"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/projectdiscovery/retryablehttp-go"
+	"github.com/stretchr/testify/require"
+)
+
+const (
+	// requestBodyWithDSL is request data that looks like a DSL expression.
+	requestBodyWithDSL = `PLAIN-{{to_upper("abc")}}-END`
+	queryRuleTarget    = "http://127.0.0.1/echo?p=SEED"
+)
+
+// fakeInteractshClient hands out numbered URLs without contacting a server.
+// Fuzz rules only allocate URLs through NewURLWithData, so the embedded nil
+// IClient is never called.
+type fakeInteractshClient struct {
+	interactsh.IClient
+
+	issued int
+}
+
+func (c *fakeInteractshClient) NewURLWithData(string) (string, error) {
+	c.issued++
+
+	return fmt.Sprintf("oast%d.example", c.issued), nil
+}
+
+// newQueryRule compiles a single-mode rule that replaces the p query value
+// with fuzzValue.
+func newQueryRule(
+	t *testing.T,
+	fuzzValue string,
+	generator *generators.PayloadGenerator,
+	templateVars variables.Variable,
+	client interactsh.IClient,
+) *Rule {
+	t.Helper()
+
+	rule := &Rule{
+		Part: component.RequestQueryComponent,
+		Type: "replace",
+		Mode: "single",
+		Fuzz: SliceOrMapSlice{Value: []string{fuzzValue}},
+	}
+	err := rule.Compile(generator, &protocols.ExecutorOptions{
+		Variables:  templateVars,
+		Options:    &types.Options{},
+		Interactsh: client,
+	})
+	require.NoError(t, err)
+
+	return rule
+}
+
+// executeQueryRule runs rule against queryRuleTarget and returns the generated
+// requests.
+func executeQueryRule(
+	t *testing.T,
+	rule *Rule,
+	method string,
+	body io.Reader,
+	values map[string]any,
+) []GeneratedRequest {
+	t.Helper()
+
+	req, err := retryablehttp.NewRequest(method, queryRuleTarget, body)
+	require.NoError(t, err)
+
+	var got []GeneratedRequest
+	err = rule.Execute(&ExecuteRuleInput{
+		Input:       contextargs.NewWithInput(context.Background(), queryRuleTarget),
+		BaseRequest: req,
+		Values:      values,
+		Callback: func(gr GeneratedRequest) bool {
+			got = append(got, gr)
+
+			return true
+		},
+	})
+	require.NoError(t, err)
+
+	return got
+}
+
+// newRequestDataVariableRule returns a query rule whose template declares
+// b: "{{body}}", so b captures request data.
+func newRequestDataVariableRule(t *testing.T, fuzzValue string, payloads map[string]any) *Rule {
+	t.Helper()
+
+	templateVars := newFuzzTestVariables()
+	templateVars.Set("b", "{{body}}")
+
+	var generator *generators.PayloadGenerator
+
+	if payloads != nil {
+		var err error
+
+		generator, err = generators.New(
+			payloads, generators.BatteringRamAttack, "", disk.NewCatalog(""), "", types.DefaultOptions(),
+		)
+		require.NoError(t, err)
+	}
+
+	// The CLI creates an Interactsh client even with -no-interactsh.
+	return newQueryRule(t, fuzzValue, generator, templateVars, &interactsh.Client{})
+}
+
+// fuzzedQueryValues runs rule against a POST request whose body is
+// requestBodyWithDSL and returns the fuzzed p query value of each generated
+// request.
+func fuzzedQueryValues(t *testing.T, rule *Rule) []string {
+	t.Helper()
+
+	generated := executeQueryRule(t, rule, http.MethodPost, strings.NewReader(requestBodyWithDSL), map[string]any{
+		"body": requestBodyWithDSL,
+	})
+
+	got := make([]string, 0, len(generated))
+	for _, gr := range generated {
+		got = append(got, gr.Request.URL.Query().Get("p"))
+	}
+
+	return got
+}
+
+func TestExecuteKeepsRequestDataInTemplateVariableLiteral(t *testing.T) {
+	t.Parallel()
+
+	t.Run("fuzz value", func(t *testing.T) {
+		t.Parallel()
+
+		rule := newRequestDataVariableRule(t, "{{b}}", nil)
+
+		require.Equal(t, []string{requestBodyWithDSL}, fuzzedQueryValues(t, rule))
+	})
+
+	t.Run("payload value", func(t *testing.T) {
+		t.Parallel()
+
+		rule := newRequestDataVariableRule(t, "{{inj}}", map[string]any{
+			"inj": []any{"{{b}}"},
+		})
+
+		// Each run iterates a fresh value map. Repeat so the result
+		// cannot depend on map iteration order.
+		for range 256 {
+			require.Equal(t, []string{requestBodyWithDSL}, fuzzedQueryValues(t, rule))
+		}
+	})
+}
+
+func TestExecuteRendersTemplateVariableInteractshMarker(t *testing.T) {
+	t.Parallel()
+
+	templateVars := newFuzzTestVariables()
+	templateVars.Set("marker", "{{interactsh-url}}")
+	rule := newQueryRule(t, "{{marker}}", nil, templateVars, &fakeInteractshClient{})
+
+	got := executeQueryRule(t, rule, http.MethodGet, nil, nil)
+
+	require.Len(t, got, 1)
+	require.Equal(t, []string{"oast1.example"}, got[0].InteractURLs)
+	require.Equal(t, "oast1.example", got[0].Request.URL.Query().Get("p"))
+}
+
+func TestPrepareGeneratorValuesRendersPayloadSharingVariableName(t *testing.T) {
+	t.Parallel()
+
+	templateVars := newFuzzTestVariables()
+	templateVars.Set("inj", "variable")
+
+	rule := &Rule{
+		options: &protocols.ExecutorOptions{
+			Variables:  templateVars,
+			Options:    &types.Options{},
+			Interactsh: &fakeInteractshClient{},
+		},
+	}
+
+	values, _ := rule.prepareGeneratorValues(map[string]any{
+		"inj": `{{to_upper("payload")}}`,
+	}, nil)
+
+	require.Equal(t, "PAYLOAD", values["inj"])
+}
+
+func TestPrepareGeneratorValuesRendersPayloadsAgainstUnrenderedInput(t *testing.T) {
+	t.Parallel()
+
+	rule := &Rule{
+		options: &protocols.ExecutorOptions{
+			Variables:  newFuzzTestVariables(),
+			Options:    &types.Options{},
+			Interactsh: &interactsh.Client{},
+		},
+	}
+
+	for range 256 {
+		values, _ := rule.prepareGeneratorValues(map[string]any{
+			"upper": `{{to_upper("x")}}`,
+			"ref":   "{{upper}}",
+		}, nil)
+
+		require.Equal(t, "X", values["upper"])
+		// ref sees the unrendered definition of upper as data.
+		require.Equal(t, `{{to_upper("x")}}`, values["ref"])
+	}
+}

pkg/input/formats/README.md

@@ -5,6 +5,7 @@ Formats implements support for passing a number of request source as input provi
 Currently the following formats are implemented - 
 
 - Burp Suite XML Request/Response file
+- HAR (HTTP Archive) file exported by browsers and proxies
 - Proxify JSONL output file
 - OpenAPI Specification file
 - Postman Collection file

pkg/input/formats/har/har.go

@@ -0,0 +1,137 @@
+package har
+
+import (
+	"encoding/base64"
+	"io"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/pkg/errors"
+	"github.com/projectdiscovery/gologger"
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats"
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/types"
+	"github.com/projectdiscovery/nuclei/v3/pkg/utils/json"
+)
+
+// HARFormat is an HTTP Archive (HAR 1.2) parser, the format browsers and
+// proxies export captured traffic in.
+type HARFormat struct {
+	opts formats.InputFormatOptions
+}
+
+// New creates a new HAR parser
+func New() *HARFormat {
+	return &HARFormat{}
+}
+
+var _ formats.Format = &HARFormat{}
+
+type archive struct {
+	Log struct {
+		Entries []entry `json:"entries"`
+	} `json:"log"`
+}
+
+type entry struct {
+	Request struct {
+		Method   string   `json:"method"`
+		URL      string   `json:"url"`
+		Headers  []header `json:"headers"`
+		PostData *struct {
+			Text string `json:"text"`
+		} `json:"postData"`
+	} `json:"request"`
+	Response struct {
+		Status     int      `json:"status"`
+		StatusText string   `json:"statusText"`
+		Headers    []header `json:"headers"`
+		Content    struct {
+			Text     string `json:"text"`
+			Encoding string `json:"encoding"`
+		} `json:"content"`
+	} `json:"response"`
+}
+
+type header struct {
+	Name  string `json:"name"`
+	Value string `json:"value"`
+}
+
+// Name returns the name of the format
+func (h *HARFormat) Name() string {
+	return "har"
+}
+
+func (h *HARFormat) SetOptions(options formats.InputFormatOptions) {
+	h.opts = options
+}
+
+// Parse parses the input and calls the provided callback
+// function for each RawRequest it discovers.
+func (h *HARFormat) Parse(input io.Reader, resultsCb formats.ParseReqRespCallback, filePath string) error {
+	var har archive
+	if err := json.NewDecoder(input).Decode(&har); err != nil {
+		return errors.Wrap(err, "could not decode har file")
+	}
+
+	for _, e := range har.Log.Entries {
+		// Browsers also log data:, blob: and extension URLs, which have no
+		// host to send a request to.
+		if !strings.HasPrefix(e.Request.URL, "http://") && !strings.HasPrefix(e.Request.URL, "https://") {
+			continue
+		}
+		rawRequest, err := types.ParseRawRequestWithURL(rawRequestOf(e), e.Request.URL)
+		if err != nil {
+			gologger.Warning().Msgf("har: Could not parse request %s: %s\n", e.Request.URL, err)
+			continue
+		}
+		// Status 0 is a request that was blocked or never answered.
+		if e.Response.Status != 0 {
+			rawRequest.Response = &types.HttpResponse{Raw: rawResponseOf(e)}
+		}
+		resultsCb(rawRequest)
+	}
+	return nil
+}
+
+// rawRequestOf rebuilds the request as HTTP/1.1 with an absolute target, which
+// carries the authority that HTTP/2 captures only keep in pseudo-headers.
+func rawRequestOf(e entry) string {
+	var b strings.Builder
+	b.WriteString(e.Request.Method + " " + e.Request.URL + " HTTP/1.1\r\n")
+	writeHeaders(&b, e.Request.Headers)
+	if e.Request.PostData != nil {
+		b.WriteString(e.Request.PostData.Text)
+	}
+	return b.String()
+}
+
+func rawResponseOf(e entry) string {
+	statusText := e.Response.StatusText
+	if statusText == "" {
+		statusText = http.StatusText(e.Response.Status)
+	}
+	var b strings.Builder
+	b.WriteString("HTTP/1.1 " + strconv.Itoa(e.Response.Status) + " " + statusText + "\r\n")
+	writeHeaders(&b, e.Response.Headers)
+	body := e.Response.Content.Text
+	if e.Response.Content.Encoding == "base64" {
+		if decoded, err := base64.StdEncoding.DecodeString(body); err == nil {
+			body = string(decoded)
+		}
+	}
+	b.WriteString(body)
+	return b.String()
+}
+
+func writeHeaders(b *strings.Builder, headers []header) {
+	for _, h := range headers {
+		// HTTP/2 pseudo-headers (:authority, :path, ...) are not headers.
+		if strings.HasPrefix(h.Name, ":") {
+			continue
+		}
+		b.WriteString(h.Name + ": " + h.Value + "\r\n")
+	}
+	b.WriteString("\r\n")
+}

pkg/input/formats/har/har_test.go

@@ -0,0 +1,71 @@
+package har
+
+import (
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/types"
+	"github.com/stretchr/testify/require"
+)
+
+const chromeHAR = "../testdata/chrome.har"
+
+func parse(t *testing.T, input string) []*types.RequestResponse {
+	t.Helper()
+	file, err := os.Open(input)
+	require.NoError(t, err)
+	defer func() { _ = file.Close() }()
+
+	var got []*types.RequestResponse
+	require.NoError(t, New().Parse(file, func(rr *types.RequestResponse) bool {
+		got = append(got, rr)
+		return false
+	}, input))
+	return got
+}
+
+func TestHARParse(t *testing.T) {
+	got := parse(t, chromeHAR)
+
+	urls := make([]string, 0, len(got))
+	for _, rr := range got {
+		urls = append(urls, rr.URL.String())
+	}
+	require.Equal(t, []string{
+		"https://ginandjuice.shop/catalog?category=Juice",
+		"https://ginandjuice.shop/login",
+		"https://ginandjuice.shop/blocked.js",
+	}, urls, "non-http entries such as data: URLs are skipped")
+}
+
+func TestHARParseHTTP2Request(t *testing.T) {
+	rr := parse(t, chromeHAR)[0]
+
+	require.Equal(t, "GET", rr.Request.Method)
+	cookie, _ := rr.Request.Headers.Get("cookie")
+	require.Equal(t, "session=abc123", cookie)
+	for _, name := range rr.Request.Headers.GetKeys() {
+		require.False(t, strings.HasPrefix(name, ":"), "pseudo-header %s is not a real header", name)
+	}
+
+	req, err := rr.BuildRequest()
+	require.NoError(t, err)
+	require.Equal(t, "ginandjuice.shop", req.Host)
+}
+
+func TestHARParseBodyAndResponse(t *testing.T) {
+	got := parse(t, chromeHAR)
+
+	login := got[1]
+	require.Equal(t, "POST", login.Request.Method)
+	require.Equal(t, "username=carlos&password=hunter2", login.Request.Body)
+	require.NotNil(t, login.Response)
+	require.Contains(t, login.Response.Raw, "302 Found")
+	require.Contains(t, login.Response.Raw, "Location: /my-account")
+
+	require.NotNil(t, got[0].Response)
+	require.Contains(t, got[0].Response.Raw, "<h1>Juice</h1>", "base64 content is decoded")
+
+	require.Nil(t, got[2].Response, "a request that never got an answer has no response")
+}

pkg/input/formats/openapi/fuzz.go

@@ -0,0 +1,20 @@
+//go:build gofuzz
+// +build gofuzz
+
+package openapi
+
+// Fuzz exercises OpenAPI 3.0 schema parsing and request generation. The input
+// bytes are treated as a raw schema document (YAML or JSON) and fed through the
+// format's Parse, which loads the schema and generates requests from it.
+func Fuzz(data []byte) int {
+	if len(data) == 0 {
+		return 0
+	}
+	if len(data) > fuzzMaxInputSize {
+		return -1
+	}
+	if !fuzzOpenAPIParsing(data) {
+		return 0
+	}
+	return 1
+}

pkg/input/formats/openapi/fuzz_harness.go

@@ -0,0 +1,32 @@
+package openapi
+
+import (
+	"bytes"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats"
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/types"
+)
+
+const fuzzMaxInputSize = 64 << 10
+
+// fuzzOpenAPIParsing feeds data to the OpenAPI format parser as a raw schema
+// document and drives request generation. It must never panic for any input;
+// it returns true when the schema parsed and at least one request was produced.
+func fuzzOpenAPIParsing(data []byte) bool {
+	if len(data) == 0 || len(data) > fuzzMaxInputSize {
+		return false
+	}
+
+	format := New()
+	format.SetOptions(formats.InputFormatOptions{})
+
+	produced := false
+	cb := func(rr *types.RequestResponse) bool {
+		produced = true
+		return true
+	}
+	if err := format.Parse(bytes.NewReader(data), cb, "fuzz.openapi"); err != nil {
+		return false
+	}
+	return produced
+}

pkg/input/formats/openapi/fuzz_harness_test.go

@@ -0,0 +1,84 @@
+package openapi
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/types"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFuzzOpenAPIParsingSeedCorpus(t *testing.T) {
+	entries, err := os.ReadDir("testdata/gofuzz-corpus")
+	require.NoError(t, err)
+	require.NotEmpty(t, entries)
+
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+
+		data, err := os.ReadFile(filepath.Join("testdata/gofuzz-corpus", entry.Name()))
+		require.NoError(t, err)
+		require.Truef(t, fuzzOpenAPIParsing(data), "seed %s should produce at least one request", entry.Name())
+	}
+}
+
+func TestFuzzOpenAPIParsingRejectsOversizeInput(t *testing.T) {
+	require.False(t, fuzzOpenAPIParsing(make([]byte, fuzzMaxInputSize+1)))
+}
+
+// Null entries decode to nil pointers and used to panic during request
+// generation. The remaining valid entries must still produce requests.
+func TestFuzzOpenAPIParsingNullEntries(t *testing.T) {
+	specs := map[string]string{
+		"null server": `
+openapi: 3.0.0
+info: {title: t, version: "1"}
+servers:
+  -
+  - {url: "http://example.com"}
+paths:
+  /users:
+    get:
+      responses: {"200": {description: ok}}
+`,
+		"null media type": `
+openapi: 3.0.0
+info: {title: t, version: "1"}
+servers: [{url: "http://example.com"}]
+paths:
+  /users:
+    post:
+      requestBody:
+        content:
+          application/xml:
+          application/json:
+            schema: {type: object, properties: {name: {type: string}}}
+      responses: {"200": {description: ok}}
+`,
+	}
+
+	for name, spec := range specs {
+		t.Run(name, func(t *testing.T) {
+			require.True(t, fuzzOpenAPIParsing([]byte(spec)))
+		})
+	}
+}
+
+func TestGenerateRequestsOnlyNullServers(t *testing.T) {
+	spec := `
+openapi: 3.0.0
+info: {title: t, version: "1"}
+servers:
+  -
+paths:
+  /users:
+    get:
+      responses: {"200": {description: ok}}
+`
+	err := New().Parse(strings.NewReader(spec), func(*types.RequestResponse) bool { return false }, "spec.yaml")
+	require.ErrorContains(t, err, "no servers found in openapi schema")
+}

pkg/input/formats/openapi/generator.go

@@ -9,6 +9,7 @@ import (
 	"net/http/httputil"
 	"net/url"
 	"os"
+	"slices"
 	"strings"
 
 	"github.com/clbanning/mxj/v2"
@@ -33,7 +34,9 @@ const (
 
 // GenerateRequestsFromSchema generates http requests from an OpenAPI 3.0 document object
 func GenerateRequestsFromSchema(schema *openapi3.T, opts formats.InputFormatOptions, callback formats.ParseReqRespCallback) error {
-	if len(schema.Servers) == 0 {
+	// Null entries in `servers:` are skipped below, so a list of only null
+	// entries has no usable server, the same as an empty list.
+	if !slices.ContainsFunc(schema.Servers, func(s *openapi3.Server) bool { return s != nil }) {
 		return errors.New("no servers found in openapi schema")
 	}
 	globalParams, globalSecurityErr := selectSecurityParameters(schema, &schema.Security, opts.Variables)
@@ -49,6 +52,11 @@ func GenerateRequestsFromSchema(schema *openapi3.T, opts formats.InputFormatOpti
 	}
 
 	for _, serverURL := range schema.Servers {
+		// A null entry in the `servers:` list decodes to a nil *Server, so skip
+		// it rather than dereferencing it.
+		if serverURL == nil {
+			continue
+		}
 		pathURL := serverURL.URL
 		// Split the server URL into baseURL and serverPath
 		u, err := url.Parse(pathURL)
@@ -268,6 +276,11 @@ func generateRequestsFromOp(opts *generateReqOptions) error {
 
 	if opts.op.RequestBody != nil {
 		for content, value := range opts.op.RequestBody.Value.Content {
+			// A null media-type entry (e.g. `content: {application/json: }`)
+			// decodes to a nil *MediaType, so skip it before dereferencing.
+			if value == nil {
+				continue
+			}
 			cloned := req.Clone(req.Context())
 
 			var val interface{}

pkg/input/formats/openapi/testdata/gofuzz-corpus/json-spec.seed

@@ -0,0 +1 @@
+{"openapi":"3.0.0","info":{"title":"t","version":"1"},"servers":[{"url":"http://example.com"}],"paths":{"/a":{"post":{"requestBody":{"content":{"application/json":{"schema":{"type":"object","properties":{"k":{"type":"string"}}}}}},"responses":{"200":{"description":"ok"}}}}}}

pkg/input/formats/openapi/testdata/gofuzz-corpus/minimal.seed

@@ -0,0 +1,7 @@
+openapi: 3.0.0
+info: {title: t, version: "1"}
+servers: [{url: "http://example.com"}]
+paths:
+  /users:
+    get:
+      responses: {"200": {description: ok}}

pkg/input/formats/openapi/testdata/gofuzz-corpus/nil-media-type.seed

@@ -0,0 +1,12 @@
+openapi: 3.0.0
+info: {title: t, version: "1"}
+servers: [{url: "http://example.com"}]
+paths:
+  /users:
+    post:
+      requestBody:
+        content:
+          application/xml:
+          application/json:
+            schema: {type: object, properties: {name: {type: string}}}
+      responses: {"200": {description: ok}}

pkg/input/formats/openapi/testdata/gofuzz-corpus/nil-server.seed

@@ -0,0 +1,9 @@
+openapi: 3.0.0
+info: {title: t, version: "1"}
+servers:
+  -
+  - {url: "http://example.com"}
+paths:
+  /users:
+    get:
+      responses: {"200": {description: ok}}

pkg/input/formats/swagger/swagger.go

@@ -3,7 +3,9 @@ package swagger
 import (
 	"fmt"
 	"io"
+	"maps"
 	"path"
+	"slices"
 
 	"github.com/getkin/kin-openapi/openapi2"
 	"github.com/getkin/kin-openapi/openapi2conv"
@@ -55,6 +57,7 @@ func (j *SwaggerFormat) Parse(input io.Reader, resultsCb formats.ParseReqRespCal
 	if err != nil {
 		return errors.Wrap(err, "could not decode openapi 2.0 schema")
 	}
+	dropNullEntries(schemav2)
 	schema, err := openapi2conv.ToV3(schemav2)
 	if err != nil {
 		return errors.Wrap(err, "could not convert openapi 2.0 schema to 3.0")
@@ -67,6 +70,32 @@ func (j *SwaggerFormat) Parse(input io.Reader, resultsCb formats.ParseReqRespCal
 	return openapi.GenerateRequestsFromSchema(schema, j.opts, resultsCb)
 }
 
+// dropNullEntries removes null entries from the maps and lists of a decoded
+// OpenAPI 2.0 document. A null value such as `paths: {/x: }` or an empty list
+// item under `parameters:` decodes to a nil pointer, which openapi2conv.ToV3
+// dereferences without checking.
+func dropNullEntries(doc *openapi2.T) {
+	maps.DeleteFunc(doc.Paths, func(_ string, v *openapi2.PathItem) bool { return v == nil })
+	maps.DeleteFunc(doc.Parameters, func(_ string, v *openapi2.Parameter) bool { return v == nil })
+	dropNullResponses(doc.Responses)
+	for _, pathItem := range doc.Paths {
+		pathItem.Parameters = slices.DeleteFunc(pathItem.Parameters, func(v *openapi2.Parameter) bool { return v == nil })
+		for _, op := range pathItem.Operations() {
+			op.Parameters = slices.DeleteFunc(op.Parameters, func(v *openapi2.Parameter) bool { return v == nil })
+			dropNullResponses(op.Responses)
+		}
+	}
+}
+
+// dropNullResponses removes null responses, and null headers of the remaining
+// responses, which openapi2conv.ToV3Response also dereferences.
+func dropNullResponses(responses map[string]*openapi2.Response) {
+	maps.DeleteFunc(responses, func(_ string, v *openapi2.Response) bool { return v == nil })
+	for _, response := range responses {
+		maps.DeleteFunc(response.Headers, func(_ string, v *openapi2.Header) bool { return v == nil })
+	}
+}
+
 func decodeYAML(data []byte, target interface{}) error {
 	var value interface{}
 	if err := yaml.Unmarshal(data, &value); err != nil {

pkg/input/formats/swagger/swagger_test.go

@@ -2,6 +2,7 @@ package swagger
 
 import (
 	"os"
+	"strings"
 	"testing"
 
 	"github.com/projectdiscovery/nuclei/v3/pkg/input/types"
@@ -39,3 +40,69 @@ func TestSwaggerAPIParser(t *testing.T) {
 	}
 	require.ElementsMatch(t, gotMethodsToURLs, expectedURLs, "could not get swagger urls")
 }
+
+func TestSwaggerParseNullEntries(t *testing.T) {
+	// Each spec has a null map value or list item that decodes to a nil
+	// pointer and used to panic inside openapi2conv.ToV3.
+	specs := map[string]string{
+		"null-path-item": `
+swagger: "2.0"
+info: {title: t, version: "1"}
+host: localhost
+paths:
+  /x:
+`,
+		"null-parameter": `
+swagger: "2.0"
+info: {title: t, version: "1"}
+host: localhost
+paths:
+  /x:
+    get:
+      parameters:
+        -
+      responses: {"200": {description: ok}}
+`,
+		"null-response": `
+swagger: "2.0"
+info: {title: t, version: "1"}
+host: localhost
+paths:
+  /x:
+    get:
+      responses: {"200": }
+`,
+		"null-response-header": `
+swagger: "2.0"
+info: {title: t, version: "1"}
+host: localhost
+responses:
+  Shared:
+    description: ok
+    headers:
+      X-Shared:
+paths:
+  /x:
+    get:
+      responses:
+        "200":
+          description: ok
+          headers:
+            X-Rate-Limit:
+`,
+	}
+
+	for name, spec := range specs {
+		t.Run(name, func(t *testing.T) {
+			var count int
+			err := New().Parse(strings.NewReader(spec), func(request *types.RequestResponse) bool {
+				count++
+				return false
+			}, "spec.yaml")
+			require.NoError(t, err)
+			if name != "null-path-item" {
+				require.Equal(t, 1, count, "the operation should still produce a request")
+			}
+		})
+	}
+}

pkg/input/formats/testdata/chrome.har

@@ -0,0 +1,71 @@
+{
+  "log": {
+    "version": "1.2",
+    "creator": { "name": "WebInspector", "version": "537.36" },
+    "entries": [
+      {
+        "request": {
+          "method": "GET",
+          "url": "https://ginandjuice.shop/catalog?category=Juice",
+          "httpVersion": "http/2.0",
+          "headers": [
+            { "name": ":authority", "value": "ginandjuice.shop" },
+            { "name": ":method", "value": "GET" },
+            { "name": ":path", "value": "/catalog?category=Juice" },
+            { "name": ":scheme", "value": "https" },
+            { "name": "accept", "value": "text/html" },
+            { "name": "cookie", "value": "session=abc123" }
+          ],
+          "queryString": [{ "name": "category", "value": "Juice" }],
+          "cookies": [],
+          "headersSize": -1,
+          "bodySize": 0
+        },
+        "response": {
+          "status": 200,
+          "statusText": "",
+          "httpVersion": "http/2.0",
+          "headers": [{ "name": "content-type", "value": "text/html; charset=utf-8" }],
+          "content": { "size": 19, "mimeType": "text/html", "text": "PGgxPkp1aWNlPC9oMT4=", "encoding": "base64" }
+        }
+      },
+      {
+        "request": {
+          "method": "POST",
+          "url": "https://ginandjuice.shop/login",
+          "httpVersion": "HTTP/1.1",
+          "headers": [
+            { "name": "Host", "value": "ginandjuice.shop" },
+            { "name": "Content-Type", "value": "application/x-www-form-urlencoded" }
+          ],
+          "postData": { "mimeType": "application/x-www-form-urlencoded", "text": "username=carlos&password=hunter2" }
+        },
+        "response": {
+          "status": 302,
+          "statusText": "Found",
+          "httpVersion": "HTTP/1.1",
+          "headers": [{ "name": "Location", "value": "/my-account" }],
+          "content": { "size": 0, "mimeType": "" }
+        }
+      },
+      {
+        "request": {
+          "method": "GET",
+          "url": "data:image/png;base64,iVBORw0KGgo=",
+          "httpVersion": "",
+          "headers": []
+        },
+        "response": { "status": 200, "statusText": "", "httpVersion": "", "headers": [], "content": { "size": 0 } }
+      },
+      {
+        "request": {
+          "method": "GET",
+          "url": "https://ginandjuice.shop/blocked.js",
+          "httpVersion": "",
+          "headers": []
+        },
+        "response": { "status": 0, "statusText": "", "httpVersion": "", "headers": [], "content": { "size": 0 } }
+      }
+    ]
+  }
+}

pkg/input/provider/http/multiformat.go

@@ -10,6 +10,7 @@ import (
 	"github.com/projectdiscovery/gologger"
 	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats"
 	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats/burp"
+	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats/har"
 	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats/json"
 	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats/openapi"
 	"github.com/projectdiscovery/nuclei/v3/pkg/input/formats/raw"
@@ -142,6 +143,7 @@ func (i *HttpInputProvider) Close() {}
 // Supported Providers
 var providersList = []formats.Format{
 	burp.New(),
+	har.New(),
 	json.New(),
 	yaml.New(),
 	openapi.New(),

pkg/input/provider/list/hmap.go

@@ -89,8 +89,9 @@ func New(opts *Options) (*ListInputProvider, error) {
 		patterns:      normalize.NewFingerprinter(options.MaxURLsPerPattern),
 		ipOptions: &ipOptions{
 			ScanAllIPs: options.ScanAllIPs,
-			IPV4:       sliceutil.Contains(options.IPVersion, "4"),
-			IPV6:       sliceutil.Contains(options.IPVersion, "6"),
+			IPV4:       len(options.IPVersion) == 0 || sliceutil.Contains(options.IPVersion, "4"),
+			IPV6:       len(options.IPVersion) == 0 || sliceutil.Contains(options.IPVersion, "6"),
+			Auto:       len(options.IPVersion) == 0,
 		},
 		excludedHosts: make(map[string]struct{}),
 		profiles:      targetprofile.NewRegistry(configuration.TemplatesDirectory(options, config.DefaultConfig)),
@@ -168,6 +169,61 @@ func (i *ListInputProvider) TargetProfiles() *targetprofile.Registry {
 	return i.profiles
 }
 
+// selectedIPs returns address pins for a hostname. An empty pin delegates
+// DNS and connection fallback to fastdialer, which races IPv4 and IPv6.
+// Set and Del share this selection. With -iv omitted and without -sa, one
+// unpinned target is returned. -sa returns every selected address.
+func (i *ListInputProvider) selectedIPs(executionId, hostname string) []string {
+	if i.ipOptions == nil || (!i.ipOptions.ScanAllIPs && (i.ipOptions.Auto || !i.ipOptions.IPV6)) {
+		return []string{""}
+	}
+	dialers := protocolstate.GetDialersWithId(executionId)
+	if dialers == nil {
+		gologger.Warning().Msgf("cannot resolve %s: dialer %s not found", hostname, executionId)
+		return nil
+	}
+	dnsData, err := dialers.Fastdialer.GetDNSData(hostname)
+	if err != nil {
+		gologger.Warning().Msgf("DNS resolution failed for %s: %v", hostname, err)
+		if i.ipOptions.IPV4 {
+			return []string{""}
+		}
+		return nil
+	}
+	if len(dnsData.A) == 0 && len(dnsData.AAAA) == 0 {
+		gologger.Warning().Msgf("DNS resolution returned no IP addresses for %s", hostname)
+		if i.ipOptions.IPV4 {
+			return []string{""}
+		}
+		return nil
+	}
+	if i.ipOptions.ScanAllIPs {
+		var ips []string
+		if i.ipOptions.IPV6 {
+			ips = append(ips, dnsData.AAAA...)
+		}
+		if i.ipOptions.IPV4 {
+			ips = append(ips, dnsData.A...)
+		}
+		if len(ips) == 0 {
+			gologger.Warning().Msgf("no DNS addresses matching -iv selection for %s", hostname)
+		}
+		return ips
+	}
+	var ips []string
+	if i.ipOptions.IPV6 && len(dnsData.AAAA) > 0 {
+		ips = append(ips, dnsData.AAAA[0])
+	}
+	// Explicit -iv 4,6 scans the first IPv6 address and one unpinned target.
+	if i.ipOptions.IPV4 {
+		ips = append(ips, "")
+	}
+	if len(ips) == 0 {
+		gologger.Warning().Msgf("no IPv6 DNS address found for %s", hostname)
+	}
+	return ips
+}
+
 // Set normalizes and stores passed input values
 func (i *ListInputProvider) Set(executionId string, value string) {
 	i.set(executionId, value, nil)
@@ -202,75 +258,11 @@ func (i *ListInputProvider) set(executionId string, value string, selection *tar
 		return
 	}
 
-	if i.ipOptions.ScanAllIPs {
-		// scan all ips
-		dialers := protocolstate.GetDialersWithId(executionId)
-		if dialers == nil {
-			gologger.Error().Msgf("dialers with executionId %s not found", executionId)
-			return
-		}
-
-		dnsData, err := dialers.Fastdialer.GetDNSData(urlx.Hostname())
-		if err == nil {
-			if (len(dnsData.A) + len(dnsData.AAAA)) > 0 {
-				var ips []string
-				if i.ipOptions.IPV4 {
-					ips = append(ips, dnsData.A...)
-				}
-				if i.ipOptions.IPV6 {
-					ips = append(ips, dnsData.AAAA...)
-				}
-				for _, ip := range ips {
-					if ip == "" {
-						continue
-					}
-					metaInput := contextargs.NewMetaInput()
-					metaInput.Input = URL
-					metaInput.CustomIP = ip
-					i.setItem(metaInput, selection)
-				}
-				return
-			} else {
-				gologger.Debug().Msgf("scanAllIps: no ip's found reverting to default")
-			}
-		} else {
-			// failed to scanallips falling back to defaults
-			gologger.Debug().Msgf("scanAllIps: dns resolution failed: %v", err)
-		}
-	}
-
-	ips := []string{}
-	// only scan the target but ipv6 if it has one
-	if i.ipOptions.IPV6 {
-		dialers := protocolstate.GetDialersWithId(executionId)
-		if dialers == nil {
-			gologger.Error().Msgf("dialers with executionId %s not found", executionId)
-			return
-		}
-
-		dnsData, err := dialers.Fastdialer.GetDNSData(urlx.Hostname())
-		if err == nil && len(dnsData.AAAA) > 0 {
-			// pick/ prefer 1st
-			ips = append(ips, dnsData.AAAA[0])
-		} else {
-			gologger.Warning().Msgf("target does not have ipv6 address falling back to ipv4 %v\n", err)
-		}
-	}
-	if i.ipOptions.IPV4 {
-		// if IPV4 is enabled do not specify ip let dialer handle it
-		ips = append(ips, "")
-	}
-
-	for _, ip := range ips {
+	for _, ip := range i.selectedIPs(executionId, urlx.Hostname()) {
 		metaInput := contextargs.NewMetaInput()
-		if ip != "" {
-			metaInput.Input = URL
-			metaInput.CustomIP = ip
-			i.setItem(metaInput, selection)
-		} else {
-			metaInput.Input = URL
-			i.setItem(metaInput, selection)
-		}
+		metaInput.Input = URL
+		metaInput.CustomIP = ip
+		i.setItem(metaInput, selection)
 	}
 }
 
@@ -493,75 +485,11 @@ func (i *ListInputProvider) Del(executionId string, value string) {
 		return
 	}
 
-	if i.ipOptions.ScanAllIPs {
-		// scan all ips
-		dialers := protocolstate.GetDialersWithId(executionId)
-		if dialers == nil {
-			gologger.Error().Msgf("dialers with executionId %s not found", executionId)
-			return
-		}
-
-		dnsData, err := dialers.Fastdialer.GetDNSData(urlx.Hostname())
-		if err == nil {
-			if (len(dnsData.A) + len(dnsData.AAAA)) > 0 {
-				var ips []string
-				if i.ipOptions.IPV4 {
-					ips = append(ips, dnsData.A...)
-				}
-				if i.ipOptions.IPV6 {
-					ips = append(ips, dnsData.AAAA...)
-				}
-				for _, ip := range ips {
-					if ip == "" {
-						continue
-					}
-					metaInput := contextargs.NewMetaInput()
-					metaInput.Input = value
-					metaInput.CustomIP = ip
-					i.delItem(metaInput)
-				}
-				return
-			} else {
-				gologger.Debug().Msgf("scanAllIps: no ip's found reverting to default")
-			}
-		} else {
-			// failed to scanallips falling back to defaults
-			gologger.Debug().Msgf("scanAllIps: dns resolution failed: %v", err)
-		}
-	}
-
-	ips := []string{}
-	// only scan the target but ipv6 if it has one
-	if i.ipOptions.IPV6 {
-		dialers := protocolstate.GetDialersWithId(executionId)
-		if dialers == nil {
-			gologger.Error().Msgf("dialers with executionId %s not found", executionId)
-			return
-		}
-
-		dnsData, err := dialers.Fastdialer.GetDNSData(urlx.Hostname())
-		if err == nil && len(dnsData.AAAA) > 0 {
-			// pick/ prefer 1st
-			ips = append(ips, dnsData.AAAA[0])
-		} else {
-			gologger.Warning().Msgf("target does not have ipv6 address falling back to ipv4 %v\n", err)
-		}
-	}
-	if i.ipOptions.IPV4 {
-		// if IPV4 is enabled do not specify ip let dialer handle it
-		ips = append(ips, "")
-	}
-
-	for _, ip := range ips {
+	for _, ip := range i.selectedIPs(executionId, urlx.Hostname()) {
 		metaInput := contextargs.NewMetaInput()
-		if ip != "" {
-			metaInput.Input = URL
-			metaInput.CustomIP = ip
-			i.delItem(metaInput)
-		} else {
-			metaInput.Input = URL
-			i.delItem(metaInput)
-		}
+		metaInput.Input = URL
+		metaInput.CustomIP = ip
+		i.delItem(metaInput)
 	}
 }
 

pkg/input/provider/list/ip_version_test.go

@@ -0,0 +1,106 @@
+package list
+
+import (
+	"net"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/miekg/dns"
+	"github.com/projectdiscovery/hmap/store/hybrid"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/contextargs"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/stretchr/testify/require"
+)
+
+// A local deterministic DNS responder for dual-stack, A-only and AAAA-only hosts.
+type ipVersionDNSHandler struct{}
+
+func (ipVersionDNSHandler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
+	reply := new(dns.Msg)
+	reply.SetReply(r)
+	if len(r.Question) == 0 {
+		_ = w.WriteMsg(reply)
+		return
+	}
+	question := r.Question[0]
+	// Some resolvers try search suffixes before the absolute name. Match the
+	// test host prefix rather than answering unrelated names as dual-stack.
+	host := strings.ToLower(question.Name)
+	if strings.HasPrefix(host, "empty.") {
+		_ = w.WriteMsg(reply)
+		return
+	}
+	isDual := strings.HasPrefix(host, "dual.")
+	isV4 := strings.HasPrefix(host, "v4only.")
+	isV6 := strings.HasPrefix(host, "v6only.")
+	if question.Qtype == dns.TypeA && (isDual || isV4) {
+		reply.Answer = append(reply.Answer, &dns.A{Hdr: dns.RR_Header{Name: question.Name, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 60}, A: net.ParseIP("192.0.2.10")})
+	}
+	if question.Qtype == dns.TypeAAAA && (isDual || isV6) {
+		reply.Answer = append(reply.Answer, &dns.AAAA{Hdr: dns.RR_Header{Name: question.Name, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: 60}, AAAA: net.ParseIP("2001:db8::10")})
+	}
+	_ = w.WriteMsg(reply)
+}
+
+func TestIPVersionsDefaultAndExplicitSelection(t *testing.T) {
+	conn, err := net.ListenPacket("udp", "127.0.0.1:0")
+	require.NoError(t, err)
+	started := make(chan struct{})
+	server := &dns.Server{PacketConn: conn, Handler: ipVersionDNSHandler{}, NotifyStartedFunc: func() { close(started) }}
+	go func() { _ = server.ActivateAndServe() }()
+	t.Cleanup(func() { _ = server.Shutdown() })
+	select {
+	case <-started:
+	case <-time.After(5 * time.Second):
+		t.Fatal("DNS test resolver did not start")
+	}
+	opts := types.DefaultOptions()
+	opts.ExecutionId = "ip-version-regression"
+	opts.InternalResolversList = []string{conn.LocalAddr().String()}
+	require.NoError(t, protocolstate.Init(opts))
+	t.Cleanup(func() { protocolstate.Close(opts.ExecutionId) })
+	for _, tc := range []struct {
+		name, hostname            string
+		scanAll, ipv4, ipv6, auto bool
+		want                      []string
+	}{
+		{"automatic dual-stack keeps dialer fallback", "dual.test", false, true, true, true, []string{""}},
+		{"automatic IPv6-only keeps dialer fallback", "v6only.test", false, true, true, true, []string{""}},
+		{"auto IPv4 fallback", "v4only.test", false, true, true, true, []string{""}},
+		{"auto empty DNS response fallback", "empty.test", false, true, true, true, []string{""}},
+		{"all empty DNS response fallback", "empty.test", true, true, true, true, []string{""}},
+		{"all dual", "dual.test", true, true, true, true, []string{"192.0.2.10", "2001:db8::10"}},
+		{"all IPv6 only", "v6only.test", true, true, true, true, []string{"2001:db8::10"}},
+		{"all IPv4 only", "v4only.test", true, true, true, true, []string{"192.0.2.10"}},
+		{"explicit IPv4 only", "dual.test", false, true, false, false, []string{""}},
+		{"explicit IPv6 only", "dual.test", false, false, true, false, []string{"2001:db8::10"}},
+		{"explicit both", "dual.test", false, true, true, false, []string{"2001:db8::10", ""}},
+		{"all explicit IPv6", "dual.test", true, false, true, false, []string{"2001:db8::10"}},
+		{"all explicit IPv4", "dual.test", true, true, false, false, []string{"192.0.2.10"}},
+		{"IPv6 restricted on IPv4-only", "v4only.test", true, false, true, false, nil},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			hm, err := hybrid.New(hybrid.DefaultDiskOptions)
+			require.NoError(t, err)
+			input := &ListInputProvider{
+				hostMap:       hm,
+				excludedHosts: make(map[string]struct{}),
+				ipOptions:     &ipOptions{ScanAllIPs: tc.scanAll, IPV4: tc.ipv4, IPV6: tc.ipv6, Auto: tc.auto},
+			}
+			t.Cleanup(input.Close)
+			input.Set(opts.ExecutionId, "https://"+tc.hostname)
+			var got []string
+			input.Iterate(func(value *contextargs.MetaInput) bool {
+				got = append(got, value.CustomIP)
+				return true
+			})
+			require.ElementsMatch(t, tc.want, got)
+			if tc.scanAll && len(tc.want) > 0 {
+				input.Del(opts.ExecutionId, "https://"+tc.hostname)
+				require.EqualValues(t, 0, input.Count(), "Del must remove the same IPs added by Set")
+			}
+		})
+	}
+}

pkg/input/provider/list/utils.go

@@ -4,4 +4,5 @@ type ipOptions struct {
 	ScanAllIPs bool
 	IPV4       bool
 	IPV6       bool
+	Auto       bool // -iv omitted: one unpinned target unless -sa scans every address
 }

pkg/js/compiler/close_test.go

@@ -0,0 +1,53 @@
+package compiler_test
+
+//nolint:depguard // No depguard rules are configured, so its default list allows only the standard library.
+import (
+	"testing"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/js/compiler"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+)
+
+// TestCloseWithoutConnection calls Close on clients that never connected.
+// The script must keep running past the call.
+func TestCloseWithoutConnection(t *testing.T) {
+	t.Parallel()
+
+	scripts := map[string]string{
+		"ssh": `
+			const ssh = require('nuclei/ssh');
+			ExportAs('closed', new ssh.SSHClient().Close());
+			true;
+		`,
+		"net": `
+			const net = require('nuclei/net');
+			new net.NetConn().Close();
+			ExportAs('closed', true);
+			true;
+		`,
+	}
+	for name, script := range scripts {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			program, err := compiler.SourceAutoMode(script, false)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			opts := new(compiler.ExecuteOptions)
+			opts.ExecutionId = t.Name()
+			opts.Source = &script // ExportAs is defined only for sources that use it.
+			opts.TimeoutVariants = types.NewTimeoutVariant(5)
+
+			result, err := compiler.New().ExecuteWithOptions(t.Context(), program, compiler.NewExecuteArgs(), opts)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			if got := result["closed"]; got != "true" {
+				t.Errorf(`result["closed"] = %v, want "true"`, got)
+			}
+		})
+	}
+}

pkg/js/compiler/pool.go

@@ -16,18 +16,22 @@ import (
 	syncutil "github.com/projectdiscovery/utils/sync"
 
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libbytes"
+	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libcompress"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libdcerpc"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libdcom"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libfs"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libgrpc"
+	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libhash"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libhttp"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libikev2"
+	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libipmi"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libkerberos"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libkrbforge"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libkrbroast"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libldap"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libmssql"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libmysql"
+	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libmqtt"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libnet"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/liboracle"
 	_ "github.com/projectdiscovery/nuclei/v3/pkg/js/generated/go/libpop3"

pkg/js/compiler/stream_libs_test.go

@@ -0,0 +1,158 @@
+package compiler
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"math/rand"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/andybalholm/brotli"
+	"github.com/klauspost/compress/gzip"
+	"github.com/klauspost/compress/zlib"
+	"github.com/klauspost/compress/zstd"
+	"github.com/projectdiscovery/dsl"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	httputil "github.com/projectdiscovery/utils/http"
+	"github.com/stretchr/testify/require"
+)
+
+const streamHashScript = `
+	const net = require('nuclei/net');
+	const compress = require('nuclei/compress');
+	const hash = require('nuclei/hash');
+
+	const conn = net.Open('tcp', %q);
+	conn.Send('GET / HTTP/1.1\r\nHost: test\r\nAccept-Encoding: gzip, deflate, br, zstd\r\n\r\n');
+	let head = '';
+	while (!head.endsWith('\r\n\r\n')) head += conn.RecvString(1);
+	const header = (name) => (head.match(new RegExp('\r\n' + name + ': ([^\r]+)', 'i')) || [])[1];
+	const length = header('Content-Length');
+	const coding = [header('Content-Encoding'), header('Transfer-Encoding')].filter(Boolean).join(', ');
+
+	const d = compress.NewDecoder(coding);
+	const sha = hash.New('sha256'), mmh3 = hash.New('mmh3');
+	const take = (out) => { sha.Write(out); mmh3.Write(out); };
+	if (length !== undefined) {
+		for (let read = 0; read < parseInt(length); ) {
+			const chunk = conn.Recv(65536);
+			read += chunk.length;
+			for (let out = d.Write(chunk); out.length > 0; out = d.Read()) take(out);
+		}
+		for (let out = d.Close(); out.length > 0; out = d.Read()) take(out);
+	} else {
+		while (!d.Finished()) {
+			for (let out = d.Write(conn.Recv(65536)); out.length > 0; out = d.Read()) take(out);
+		}
+	}
+	ExportAs('sha256', sha.Sum());
+	ExportAs('mmh3', mmh3.Sum());
+	true;
+`
+
+func encodeBody(t *testing.T, encoding string, data []byte) []byte {
+	t.Helper()
+	var buf bytes.Buffer
+	var w io.WriteCloser
+	switch encoding {
+	case "gzip":
+		w = gzip.NewWriter(&buf)
+	case "deflate":
+		w = zlib.NewWriter(&buf)
+	case "br":
+		w = brotli.NewWriter(&buf)
+	case "zstd":
+		zw, err := zstd.NewWriter(&buf)
+		require.NoError(t, err)
+		w = zw
+	case "":
+		return data
+	}
+	_, err := w.Write(data)
+	require.NoError(t, err)
+	require.NoError(t, w.Close())
+	return buf.Bytes()
+}
+
+func TestStreamingHashMatchesHTTPEngine(t *testing.T) {
+	rng := rand.New(rand.NewSource(1))
+	var body []byte
+	for len(body) < 6<<20 {
+		body = append(body, "large compressed response body "...)
+		body = append(body, byte(rng.Intn(256)))
+	}
+
+	executionID := t.Name()
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: executionID}))
+	t.Cleanup(func() { protocolstate.Close(executionID) })
+
+	for _, tc := range []struct {
+		encoding string
+		chunked  bool
+	}{
+		{"gzip", false},
+		{"gzip", true},
+		{"deflate", false},
+		{"br", true},
+		{"zstd", true},
+		{"", true},
+	} {
+		t.Run(fmt.Sprintf("%s chunked=%v", tc.encoding, tc.chunked), func(t *testing.T) {
+			encoded := encodeBody(t, tc.encoding, body)
+			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				if tc.encoding != "" {
+					w.Header().Set("Content-Encoding", tc.encoding)
+				}
+				if !tc.chunked {
+					w.Header().Set("Content-Length", strconv.Itoa(len(encoded)))
+					_, _ = w.Write(encoded)
+					return
+				}
+				// Flushing before the handler returns makes the body chunked.
+				for rest := encoded; len(rest) > 0; {
+					n := min(len(rest), 50000)
+					_, _ = w.Write(rest[:n])
+					w.(http.Flusher).Flush()
+					rest = rest[n:]
+				}
+			}))
+			defer server.Close()
+
+			client := &http.Client{Transport: &http.Transport{DisableCompression: true}}
+			resp, err := client.Get(server.URL)
+			require.NoError(t, err)
+			if tc.chunked {
+				require.Equal(t, []string{"chunked"}, resp.TransferEncoding)
+			}
+			chain := httputil.NewResponseChain(resp, 64<<20)
+			defer chain.Close()
+			require.NoError(t, chain.Fill())
+			require.Equal(t, len(body), chain.Body().Len(), "the engine must decode the whole body")
+			engineBody := map[string]interface{}{"body": chain.BodyString()}
+			wantSha, err := dsl.EvalExpr("sha256(body)", engineBody)
+			require.NoError(t, err)
+			wantMmh3, err := dsl.EvalExpr("mmh3(body)", engineBody)
+			require.NoError(t, err)
+
+			serverURL, err := url.Parse(server.URL)
+			require.NoError(t, err)
+			script := fmt.Sprintf(streamHashScript, serverURL.Host)
+			compiled, err := SourceAutoMode(script, false)
+			require.NoError(t, err)
+			result, err := New().ExecuteWithOptions(t.Context(), compiled, NewExecuteArgs(), &ExecuteOptions{
+				ExecutionId:     executionID,
+				Source:          &script,
+				TimeoutVariants: &types.Timeouts{JsCompilerExecutionTimeout: 20 * time.Second},
+			})
+			require.NoError(t, err)
+			require.Equal(t, fmt.Sprint(wantSha), result["sha256"])
+			require.Equal(t, fmt.Sprint(wantMmh3), result["mmh3"])
+		})
+	}
+}

pkg/js/generated/go/libcompress/compress.go

@@ -0,0 +1,30 @@
+package compress
+
+import (
+	lib_compress "github.com/projectdiscovery/nuclei/v3/pkg/js/libs/compress"
+
+	"github.com/projectdiscovery/goja"
+	"github.com/projectdiscovery/nuclei/v3/pkg/js/gojs"
+)
+
+var (
+	module = gojs.NewGojaModule("nuclei/compress")
+)
+
+func init() {
+	module.Set(
+		gojs.Objects{
+			// Functions
+			"NewDecoder": lib_compress.NewDecoder,
+
+			// Var and consts
+
+			// Objects / Classes
+			"Decoder": gojs.GetClassConstructor[lib_compress.Decoder](&lib_compress.Decoder{}),
+		},
+	).Register()
+}
+
+func Enable(runtime *goja.Runtime) {
+	module.Enable(runtime)
+}

pkg/js/generated/go/libhash/hash.go

@@ -0,0 +1,30 @@
+package hash
+
+import (
+	lib_hash "github.com/projectdiscovery/nuclei/v3/pkg/js/libs/hash"
+
+	"github.com/projectdiscovery/goja"
+	"github.com/projectdiscovery/nuclei/v3/pkg/js/gojs"
+)
+
+var (
+	module = gojs.NewGojaModule("nuclei/hash")
+)
+
+func init() {
+	module.Set(
+		gojs.Objects{
+			// Functions
+			"New": lib_hash.New,
+
+			// Var and consts
+
+			// Objects / Classes
+			"Hash": gojs.GetClassConstructor[lib_hash.Hash](&lib_hash.Hash{}),
+		},
+	).Register()
+}
+
+func Enable(runtime *goja.Runtime) {
+	module.Enable(runtime)
+}

pkg/js/generated/go/libipmi/ipmi.go

@@ -0,0 +1,39 @@
+package ipmi
+
+import (
+	lib_ipmi "github.com/projectdiscovery/nuclei/v3/pkg/js/libs/ipmi"
+
+	"github.com/projectdiscovery/goja"
+	"github.com/projectdiscovery/nuclei/v3/pkg/js/gojs"
+)
+
+var (
+	module = gojs.NewGojaModule("nuclei/ipmi")
+)
+
+func init() {
+	module.Set(
+		gojs.Objects{
+			// Functions
+			"CheckRAKPPassword":   lib_ipmi.CheckRAKPPassword,
+			"FindRAKPPassword":    lib_ipmi.FindRAKPPassword,
+			"GetAuthCapabilities": lib_ipmi.GetAuthCapabilities,
+			"GetCipherSuites":     lib_ipmi.GetCipherSuites,
+			"GetRAKPHash":         lib_ipmi.GetRAKPHash,
+			"GetSystemGUID":       lib_ipmi.GetSystemGUID,
+			"Ping":                lib_ipmi.Ping,
+
+			// Var and consts
+
+			// Objects / Classes
+			"AuthCapabilities": gojs.GetClassConstructor[lib_ipmi.AuthCapabilities](&lib_ipmi.AuthCapabilities{}),
+			"Client":           gojs.GetClassConstructor[lib_ipmi.Client](&lib_ipmi.Client{}),
+			"CommandResponse":  gojs.GetClassConstructor[lib_ipmi.CommandResponse](&lib_ipmi.CommandResponse{}),
+			"RAKPHash":         gojs.GetClassConstructor[lib_ipmi.RAKPHash](&lib_ipmi.RAKPHash{}),
+		},
+	).Register()
+}
+
+func Enable(runtime *goja.Runtime) {
+	module.Enable(runtime)
+}

pkg/js/generated/go/libmqtt/mqtt.go

@@ -0,0 +1,34 @@
+package mqtt
+
+import (
+	lib_mqtt "github.com/projectdiscovery/nuclei/v3/pkg/js/libs/mqtt"
+
+	"github.com/projectdiscovery/goja"
+	"github.com/projectdiscovery/nuclei/v3/pkg/js/gojs"
+)
+
+var (
+	module = gojs.NewGojaModule("nuclei/mqtt")
+)
+
+func init() {
+	module.Set(
+		gojs.Objects{
+			// Functions
+			"IsMQTT":             lib_mqtt.IsMQTT,
+			"IsAnonymousAllowed": lib_mqtt.IsAnonymousAllowed,
+
+			// Var and consts
+
+			// Objects / Classes
+			"Client":         gojs.GetClassConstructor[lib_mqtt.Client](&lib_mqtt.Client{}),
+			"ConnectOptions": gojs.GetClassConstructor[lib_mqtt.ConnectOptions](&lib_mqtt.ConnectOptions{}),
+			"ConnectResult":  gojs.GetClassConstructor[lib_mqtt.ConnectResult](&lib_mqtt.ConnectResult{}),
+			"Message":        gojs.GetClassConstructor[lib_mqtt.Message](&lib_mqtt.Message{}),
+		},
+	).Register()
+}
+
+func Enable(runtime *goja.Runtime) {
+	module.Enable(runtime)
+}

pkg/js/generated/ts/compress.ts

@@ -0,0 +1,102 @@
+
+
+/**
+ * NewDecoder returns a decoder for gzip, deflate, br, zstd, chunked or
+ * identity. List several comma-separated, in the order they were applied.
+ * @example
+ * ```javascript
+ * const compress = require('nuclei/compress');
+ * const d = compress.NewDecoder('br');
+ * // Content-Encoding: gzip sent with Transfer-Encoding: chunked
+ * const c = compress.NewDecoder('gzip, chunked');
+ * ```
+ */
+export function NewDecoder(encoding: string): Decoder | null {
+    return null;
+}
+
+
+
+/**
+ * Decoder decodes a compressed stream written to it in chunks. Each call
+ * returns up to about 1 MB; call Read until it returns nothing before the
+ * next Write.
+ * @example
+ * ```javascript
+ * const compress = require('nuclei/compress');
+ * const hash = require('nuclei/hash');
+ * const d = compress.NewDecoder('gzip');
+ * const h = hash.New('sha256');
+ * for (const chunk of chunks) {
+ *   for (let out = d.Write(chunk); out.length > 0; out = d.Read()) h.Write(out);
+ * }
+ * for (let out = d.Close(); out.length > 0; out = d.Read()) h.Write(out);
+ * log(h.Sum());
+ * ```
+ */
+export class Decoder {
+    
+
+    // Constructor of Decoder
+    constructor() {}
+    /**
+    * Write decodes the next chunk and returns up to about 1 MB of output.
+    * @example
+    * ```javascript
+    * const compress = require('nuclei/compress');
+    * const d = compress.NewDecoder('gzip');
+    * const out = d.Write(chunk);
+    * ```
+    */
+    public Write(chunk: Uint8Array): Uint8Array | null {
+        return null;
+    }
+    
+
+    /**
+    * Read returns more decoded bytes, or none once the decoder needs input.
+    * @example
+    * ```javascript
+    * const compress = require('nuclei/compress');
+    * const d = compress.NewDecoder('gzip');
+    * for (let out = d.Write(chunk); out.length > 0; out = d.Read()) log(out.length);
+    * ```
+    */
+    public Read(): Uint8Array | null {
+        return null;
+    }
+    
+
+    /**
+    * Close ends the input and returns the last decoded bytes. A truncated
+    * stream errors once the bytes before the cut have been returned.
+    * @example
+    * ```javascript
+    * const compress = require('nuclei/compress');
+    * const d = compress.NewDecoder('gzip');
+    * d.Write(chunk);
+    * for (let out = d.Close(); out.length > 0; out = d.Read()) log(out.length);
+    * ```
+    */
+    public Close(): Uint8Array | null {
+        return null;
+    }
+    
+
+    /**
+    * Finished reports whether a stream that marks its own end, such as a
+    * chunked body, has ended and all its output was read.
+    * @example
+    * ```javascript
+    * const compress = require('nuclei/compress');
+    * const d = compress.NewDecoder('gzip, chunked');
+    * while (!d.Finished()) for (let out = d.Write(conn.Recv(65536)); out.length > 0; out = d.Read()) log(out.length);
+    * ```
+    */
+    public Finished(): boolean {
+        return false;
+    }
+    
+
+}
+

pkg/js/generated/ts/hash.ts

@@ -0,0 +1,77 @@
+
+
+/**
+ * New returns a running hash for md5, sha1, sha256, sha512 or mmh3. Sum
+ * matches the DSL function of the same name.
+ * @example
+ * ```javascript
+ * const hash = require('nuclei/hash');
+ * const h = hash.New('sha256');
+ * ```
+ */
+export function New(algorithm: string): Hash | null {
+    return null;
+}
+
+
+
+/**
+ * Hash is a running hash.
+ * @example
+ * ```javascript
+ * const hash = require('nuclei/hash');
+ * const h = hash.New('sha256');
+ * h.WriteString('hello');
+ * log(h.Sum());
+ * ```
+ */
+export class Hash {
+    
+
+    // Constructor of Hash
+    constructor() {}
+    /**
+    * Write adds data to the hash.
+    * @example
+    * ```javascript
+    * const hash = require('nuclei/hash');
+    * const h = hash.New('sha256');
+    * h.Write([104, 105]);
+    * ```
+    */
+    public Write(data: Uint8Array): void {
+        return;
+    }
+    
+
+    /**
+    * WriteString adds the string data to the hash.
+    * @example
+    * ```javascript
+    * const hash = require('nuclei/hash');
+    * const h = hash.New('sha256');
+    * h.WriteString('hi');
+    * ```
+    */
+    public WriteString(data: string): void {
+        return;
+    }
+    
+
+    /**
+    * Sum returns the hash of the data written so far, formatted as the DSL does.
+    * @example
+    * ```javascript
+    * const hash = require('nuclei/hash');
+    * const h = hash.New('mmh3');
+    * h.WriteString('hello');
+    * log(h.Sum());
+    * ```
+    */
+    public Sum(): string | null {
+        return null;
+    }
+    
+
+}
+

pkg/js/generated/ts/index.ts

@@ -1,17 +1,21 @@
 export * as bytes from './bytes';
+export * as compress from './compress';
 export * as dcom from './dcom';
 export * as dcerpc from './dcerpc';
 export * as fs from './fs';
 export * as goconsole from './goconsole';
 export * as grpc from './grpc';
+export * as hash from './hash';
 export * as http from './http';
 export * as ikev2 from './ikev2';
+export * as ipmi from './ipmi';
 export * as kerberos from './kerberos';
 export * as krbforge from './krbforge';
 export * as krbroast from './krbroast';
 export * as ldap from './ldap';
 export * as mssql from './mssql';
 export * as mysql from './mysql';
+export * as mqtt from './mqtt';
 export * as net from './net';
 export * as oracle from './oracle';
 export * as pop3 from './pop3';

pkg/js/generated/ts/ipmi.ts

@@ -0,0 +1,304 @@
+
+
+/**
+ * CheckRAKPPassword reports whether password produced hash. It runs offline,
+ * so it can test any number of passwords without touching the BMC.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const hash = ipmi.GetRAKPHash('acme.com', 623, 'ADMIN');
+ * log(ipmi.CheckRAKPPassword(hash, 'ADMIN'));
+ * ```
+ */
+export function CheckRAKPPassword(hash: RAKPHash, password: string): boolean {
+    return false;
+}
+
+
+
+/**
+ * FindRAKPPassword returns the first of passwords that produced hash, or an
+ * empty string.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const hash = ipmi.GetRAKPHash('acme.com', 623, 'root');
+ * log(ipmi.FindRAKPPassword(hash, ['calvin', 'root', 'admin']));
+ * ```
+ */
+export function FindRAKPPassword(hash: RAKPHash, passwords: string[]): string {
+    return "";
+}
+
+
+
+/**
+ * GetAuthCapabilities returns the authentication capabilities the BMC
+ * advertises on the current channel.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const caps = ipmi.GetAuthCapabilities('acme.com', 623);
+ * log(caps.AnonymousLogin);
+ * ```
+ */
+export function GetAuthCapabilities(ctx: any, host: string, port: number): AuthCapabilities | null {
+    return null;
+}
+
+
+
+/**
+ * GetCipherSuites returns the IDs of the RMCP+ cipher suites the BMC
+ * offers. Cipher suite 0 authenticates nothing, so any password logs in.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const suites = ipmi.GetCipherSuites('acme.com', 623);
+ * log(suites.includes(0));
+ * ```
+ */
+export function GetCipherSuites(ctx: any, host: string, port: number): number[] | null {
+    return null;
+}
+
+
+
+/**
+ * GetRAKPHash starts an RMCP+ session as username and returns the HMAC the
+ * BMC answers with. The session is never completed, so no login is
+ * attempted; the BMC drops the half-open session after its timeout. It fails
+ * when the BMC rejects the username.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const hash = ipmi.GetRAKPHash('acme.com', 623, 'ADMIN');
+ * log(ipmi.CheckRAKPPassword(hash, 'ADMIN'));
+ * ```
+ */
+export function GetRAKPHash(ctx: any, host: string, port: number, username: string): RAKPHash | null {
+    return null;
+}
+
+
+
+/**
+ * GetSystemGUID returns the BMC system GUID, which vendors derive from
+ * serial numbers or MAC addresses.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const guid = ipmi.GetSystemGUID('acme.com', 623);
+ * log(guid);
+ * ```
+ */
+export function GetSystemGUID(ctx: any, host: string, port: number): string | null {
+    return null;
+}
+
+
+
+/**
+ * Ping reports whether the host answers an RMCP presence ping and advertises
+ * IPMI support.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const isIPMI = ipmi.Ping('acme.com', 623);
+ * log(isIPMI);
+ * ```
+ */
+export function Ping(ctx: any, host: string, port: number): boolean | null {
+    return null;
+}
+
+
+
+/**
+ * Client holds one RMCP+ session, for commands that need a login.
+ * Close it when done: BMCs allow only a few sessions at a time.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const client = new ipmi.Client();
+ * client.Login('acme.com', 623, 'ADMIN', 'ADMIN', 3);
+ * const id = client.Command(0x06, 0x01, []);
+ * client.Close();
+ * ```
+ */
+export class Client {
+    
+
+    // Constructor of Client
+    constructor() {}
+    /**
+    * Login opens an RMCP+ session as username with the given cipher suite
+    * (0, 1, 2, 3 or 6). Cipher suite 0 skips authentication, so a BMC
+    * that allows it accepts any password. A rejected login is an error.
+    * @example
+    * ```javascript
+    * const ipmi = require('nuclei/ipmi');
+    * const client = new ipmi.Client();
+    * client.Login('acme.com', 623, 'ADMIN', 'not-the-password', 0);
+    * ```
+    */
+    public Login(ctx: any, host: string, port: number, username: string, password: string, cipherSuite: number): boolean | null {
+        return null;
+    }
+    
+
+    /**
+    * Command sends an IPMI request in the session, such as Get Device ID
+    * (netFn 0x06, cmd 0x01) or Set Session Privilege Level (0x06, 0x3b).
+    * @example
+    * ```javascript
+    * const ipmi = require('nuclei/ipmi');
+    * const client = new ipmi.Client();
+    * client.Login('acme.com', 623, 'ADMIN', 'ADMIN', 3);
+    * const admin = client.Command(0x06, 0x3b, [0x04]).CompletionCode == 0;
+    * client.Close();
+    * ```
+    */
+    public Command(netFn: number, cmd: number, data: Uint8Array): CommandResponse | null {
+        return null;
+    }
+    
+
+    /**
+    * Close ends the session on the BMC, freeing its slot.
+    * @example
+    * ```javascript
+    * const ipmi = require('nuclei/ipmi');
+    * const client = new ipmi.Client();
+    * client.Login('acme.com', 623, 'ADMIN', 'ADMIN', 3);
+    * client.Close();
+    * ```
+    */
+    public Close(): void {
+        return;
+    }
+    
+
+}
+
+
+
+/**
+ * AuthCapabilities is what a BMC advertises before any login, from Get
+ * Channel Authentication Capabilities.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const caps = ipmi.GetAuthCapabilities('acme.com', 623);
+ * log(toJSON(caps));
+ * ```
+ */
+export interface AuthCapabilities {
+    
+    /**
+    * IPMI20 is true when the BMC supports IPMI 2.0 (RMCP+).
+    */
+    
+    IPMI20?: boolean,
+    
+    /**
+    * AuthTypes are the IPMI 1.5 authentication types the channel
+    * accepts: none, md2, md5, straight (cleartext password), oem.
+    */
+    
+    AuthTypes?: string[],
+    
+    /**
+    * AnonymousLogin is true when a null username with a null password
+    * is accepted.
+    */
+    
+    AnonymousLogin?: boolean,
+    
+    /**
+    * NullUsernames is true when accounts with an empty name are enabled.
+    */
+    
+    NullUsernames?: boolean,
+    
+    /**
+    * NonNullUsernames is true when named accounts are enabled.
+    */
+    
+    NonNullUsernames?: boolean,
+    
+    /**
+    * PerMessageAuth is false when the BMC skips authenticating
+    * messages after login.
+    */
+    
+    PerMessageAuth?: boolean,
+    
+    /**
+    * UserLevelAuth is false when user-level commands skip
+    * authentication.
+    */
+    
+    UserLevelAuth?: boolean,
+    
+    /**
+    * OEMID is the IANA enterprise number of the BMC vendor, or 0.
+    */
+    
+    OEMID?: number,
+}
+
+
+
+/**
+ * CommandResponse is the reply to an IPMI command.
+ */
+export interface CommandResponse {
+    
+    /**
+    * CompletionCode is 0 on success.
+    */
+    
+    CompletionCode?: number,
+    
+    Data?: Uint8Array,
+}
+
+
+
+/**
+ * RAKPHash is the HMAC a BMC returns for a user during RMCP+ session
+ * setup (CVE-2013-4786). It can be checked offline against candidate
+ * passwords, which tests credentials without a login attempt.
+ * @example
+ * ```javascript
+ * const ipmi = require('nuclei/ipmi');
+ * const hash = ipmi.GetRAKPHash('acme.com', 623, 'ADMIN');
+ * log(hash.Hashcat);
+ * ```
+ */
+export interface RAKPHash {
+    
+    Username?: string,
+    
+    /**
+    * Algorithm is the HMAC the BMC used: sha1 or md5.
+    */
+    
+    Algorithm?: string,
+    
+    /**
+    * Salt and HMAC are hex encoded; Salt is everything the HMAC covers.
+    */
+    
+    Salt?: string,
+    
+    HMAC?: string,
+    
+    /**
+    * Hashcat is the hash in hashcat mode 7300 format, for sha1 only.
+    */
+    
+    Hashcat?: string,
+}
+

pkg/js/generated/ts/mqtt.ts

@@ -0,0 +1,190 @@
+
+/**
+ * IsMQTT checks whether the target host:port is running an MQTT broker.
+ * @example
+ * ```javascript
+ * const mqtt = require('nuclei/mqtt');
+ * const isMqtt = mqtt.IsMQTT('acme.com', 1883);
+ * log(isMqtt);
+ * ```
+ */
+export function IsMQTT(host: string, port: number): boolean | null {
+    return null;
+}
+
+/**
+ * IsAnonymousAllowed checks whether an MQTT broker permits unauthenticated / anonymous login.
+ * @example
+ * ```javascript
+ * const mqtt = require('nuclei/mqtt');
+ * const allowed = mqtt.IsAnonymousAllowed('acme.com', 1883);
+ * log(allowed);
+ * ```
+ */
+export function IsAnonymousAllowed(host: string, port: number): boolean | null {
+    return null;
+}
+
+/**
+ * Message represents an MQTT published message.
+ * @example
+ * ```javascript
+ * const mqtt = require('nuclei/mqtt');
+ * const client = new mqtt.Client();
+ * client.Connect('broker.hivemq.com', 1883);
+ * const msgs = client.Subscribe('test/topic', 2);
+ * log(msgs[0].Topic, msgs[0].Payload);
+ * ```
+ */
+export interface Message {
+    Topic?: string;
+    Payload?: string;
+    QoS?: number;
+    Retain?: boolean;
+}
+
+/**
+ * ConnectOptions contains connection options for an MQTT broker.
+ * @example
+ * ```javascript
+ * const mqtt = require('nuclei/mqtt');
+ * const opts = new mqtt.ConnectOptions();
+ * opts.Username = 'admin';
+ * opts.Password = 'admin';
+ * opts.CleanSession = true;
+ * ```
+ */
+export interface ConnectOptions {
+    Username?: string;
+    Password?: string;
+    ClientID?: string;
+    CleanSession?: boolean;
+    KeepAlive?: number;
+    TLS?: boolean;
+    InsecureSkipVerify?: boolean;
+    Timeout?: number;
+}
+
+/**
+ * ConnectResult is the response returned by an MQTT connection attempt.
+ * @example
+ * ```javascript
+ * const mqtt = require('nuclei/mqtt');
+ * const client = new mqtt.Client();
+ * const res = client.Connect('acme.com', 1883);
+ * log(res.Success, res.ReturnCode, res.Reason);
+ * ```
+ */
+export interface ConnectResult {
+    Success?: boolean;
+    ReturnCode?: number;
+    Reason?: string;
+    SessionPresent?: boolean;
+}
+
+/**
+ * Client is an MQTT client for testing MQTT broker misconfigurations and authentication.
+ * @example
+ * ```javascript
+ * const mqtt = require('nuclei/mqtt');
+ * const client = new mqtt.Client();
+ * const res = client.Connect('acme.com', 1883);
+ * if (res.Success) {
+ *     const msgs = client.Subscribe('#', 2);
+ *     client.Publish('nuclei/probe', 'test');
+ * }
+ * client.Close();
+ * ```
+ */
+export class Client {
+    constructor() {}
+
+    /**
+     * Connect connects to an MQTT broker using optional credentials and settings.
+     * @example
+     * ```javascript
+     * const mqtt = require('nuclei/mqtt');
+     * const client = new mqtt.Client();
+     * const res = client.Connect('acme.com', 1883);
+     * log(res.Success);
+     * ```
+     */
+    public Connect(host: string, port: number, options?: ConnectOptions): ConnectResult | null {
+        return null;
+    }
+
+    /**
+     * ConnectAuth connects to an MQTT broker with a username and password.
+     * @example
+     * ```javascript
+     * const mqtt = require('nuclei/mqtt');
+     * const client = new mqtt.Client();
+     * const res = client.ConnectAuth('acme.com', 1883, 'admin', 'admin');
+     * log(res.Success);
+     * ```
+     */
+    public ConnectAuth(host: string, port: number, username: string, password: string): ConnectResult | null {
+        return null;
+    }
+
+    /**
+     * Subscribe subscribes to a topic filter and collects received messages up to timeoutSec.
+     * @example
+     * ```javascript
+     * const mqtt = require('nuclei/mqtt');
+     * const client = new mqtt.Client();
+     * client.Connect('acme.com', 1883);
+     * const msgs = client.Subscribe('#', 3);
+     * for (const m of msgs) {
+     *     log(m.Topic, m.Payload);
+     * }
+     * ```
+     */
+    public Subscribe(topic: string, timeoutSec?: number): Message[] | null {
+        return null;
+    }
+
+    /**
+     * Publish publishes a message payload to a topic.
+     * @example
+     * ```javascript
+     * const mqtt = require('nuclei/mqtt');
+     * const client = new mqtt.Client();
+     * client.Connect('acme.com', 1883);
+     * const ok = client.Publish('nuclei/test', 'probe payload');
+     * log(ok);
+     * ```
+     */
+    public Publish(topic: string, payload: string): boolean | null {
+        return null;
+    }
+
+    /**
+     * Ping sends an MQTT PINGREQ and awaits PINGRESP.
+     * @example
+     * ```javascript
+     * const mqtt = require('nuclei/mqtt');
+     * const client = new mqtt.Client();
+     * client.Connect('acme.com', 1883);
+     * const alive = client.Ping();
+     * log(alive);
+     * ```
+     */
+    public Ping(): boolean | null {
+        return null;
+    }
+
+    /**
+     * Close cleanly disconnects and closes the connection.
+     * @example
+     * ```javascript
+     * const mqtt = require('nuclei/mqtt');
+     * const client = new mqtt.Client();
+     * client.Connect('acme.com', 1883);
+     * client.Close();
+     * ```
+     */
+    public Close(): error | null {
+        return null;
+    }
+}

pkg/js/generated/ts/net.ts

@@ -46,6 +46,7 @@ export class NetConn {
     constructor() {}
     /**
     * Close closes the connection.
+    * Close does nothing if no connection is open.
     * @example
     * ```javascript
     * const net = require('nuclei/net');

pkg/js/generated/ts/postgres.ts

@@ -2,7 +2,7 @@
 
 /**
  * PGClient is a client for Postgres database.
- * Internally client uses go-pg/pg driver.
+ * Internally client uses lib/pq driver.
  * @example
  * ```javascript
  * const postgres = require('nuclei/postgres');

pkg/js/generated/ts/ssh.ts

@@ -106,7 +106,8 @@ export class SSHClient {
     /**
     * Close closes the SSH connection and destroys the client
     * Returns the success state and error. If error is not nil,
-    * state will be false
+    * state will be false. Close does nothing and returns true
+    * if no connection is open.
     * @example
     * ```javascript
     * const ssh = require('nuclei/ssh');

pkg/js/gojs/gojs.go

@@ -128,9 +128,13 @@ func (p *GojaModule) Register() Module {
 	return p
 }
 
-// GetClassConstructor returns a constructor for any given go struct type for goja runtime
+// GetClassConstructor returns a constructor for any given go struct type for goja runtime.
+// Each object it constructs starts as a shallow copy of instance, so objects
+// do not share state.
 func GetClassConstructor[T any](instance *T) func(call goja.ConstructorCall, runtime *goja.Runtime) *goja.Object {
 	return func(call goja.ConstructorCall, runtime *goja.Runtime) *goja.Object {
-		return utils.LinkConstructor[*T](call, runtime, instance)
+		obj := *instance
+
+		return utils.LinkConstructor(call, runtime, &obj)
 	}
 }

pkg/js/gojs/gojs_test.go

@@ -0,0 +1,46 @@
+package gojs_test
+
+//nolint:depguard // No depguard rules are configured, so its default list allows only the standard library.
+import (
+	"testing"
+
+	"github.com/projectdiscovery/goja"
+	"github.com/projectdiscovery/nuclei/v3/pkg/js/gojs"
+)
+
+type counter struct{ n int }
+
+func (c *counter) Inc() int {
+	c.n++
+
+	return c.n
+}
+
+func TestGetClassConstructorReturnsNewObjects(t *testing.T) {
+	t.Parallel()
+
+	prototype := new(counter)
+	runtime := goja.New()
+
+	err := runtime.Set("Counter", gojs.GetClassConstructor(prototype))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	value, err := runtime.RunString(`
+		const first = new Counter();
+		first.Inc();
+		new Counter().Inc();
+	`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if got := value.ToInteger(); got != 1 {
+		t.Errorf("new Counter().Inc() = %d, want 1", got)
+	}
+
+	if prototype.n != 0 {
+		t.Errorf("prototype.n = %d, want 0", prototype.n)
+	}
+}

pkg/js/libs/compress/decoder.go

@@ -0,0 +1,303 @@
+// Package compress exposes streaming decompression to nuclei JavaScript templates.
+package compress
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http/httputil"
+	"slices"
+	"strings"
+
+	"github.com/dsnet/compress/brotli"
+	"github.com/klauspost/compress/gzip"
+	"github.com/klauspost/compress/zlib"
+	"github.com/klauspost/compress/zstd"
+)
+
+// maxDecodedChunk caps the decoded bytes one call hands back.
+const maxDecodedChunk = 1 << 20
+
+type pauseReason int
+
+const (
+	needInput pauseReason = iota
+	outputFull
+	finished
+)
+
+type (
+	// Decoder decodes a compressed stream written to it in chunks. Each call
+	// returns up to about 1 MB; call Read until it returns nothing before the
+	// next Write.
+	// @example
+	// ```javascript
+	// const compress = require('nuclei/compress');
+	// const hash = require('nuclei/hash');
+	// const d = compress.NewDecoder('gzip');
+	// const h = hash.New('sha256');
+	// for (const chunk of chunks) {
+	//   for (let out = d.Write(chunk); out.length > 0; out = d.Read()) h.Write(out);
+	// }
+	// for (let out = d.Close(); out.length > 0; out = d.Read()) h.Write(out);
+	// log(h.Sum());
+	// ```
+	Decoder struct {
+		ctx context.Context
+		// The decode goroutine and the template's calls take turns over these
+		// channels, so no field is accessed by both at once.
+		resume chan []byte
+		paused chan pauseReason
+		done   chan struct{}
+		out    []byte
+
+		state      pauseReason
+		inputEnded bool
+
+		pending []byte
+		eof     bool
+		err     error
+	}
+)
+
+// NewDecoder returns a decoder for gzip, deflate, br, zstd, chunked or
+// identity. List several comma-separated, in the order they were applied.
+// @example
+// ```javascript
+// const compress = require('nuclei/compress');
+// const d = compress.NewDecoder('br');
+// // Content-Encoding: gzip sent with Transfer-Encoding: chunked
+// const c = compress.NewDecoder('gzip, chunked');
+// ```
+func NewDecoder(ctx context.Context, encoding string) (*Decoder, error) {
+	var opens []func(io.Reader) (io.Reader, func(), error)
+	for name := range strings.SplitSeq(encoding, ",") {
+		switch name = strings.ToLower(strings.TrimSpace(name)); name {
+		case "gzip":
+			opens = append(opens, func(r io.Reader) (io.Reader, func(), error) {
+				zr, err := gzip.NewReader(r)
+				return zr, func() {}, err
+			})
+		case "deflate":
+			opens = append(opens, func(r io.Reader) (io.Reader, func(), error) {
+				zr, err := zlib.NewReader(r)
+				return zr, func() {}, err
+			})
+		case "br":
+			opens = append(opens, func(r io.Reader) (io.Reader, func(), error) {
+				br, err := brotli.NewReader(r, nil)
+				return br, func() {}, err
+			})
+		case "zstd":
+			opens = append(opens, func(r io.Reader) (io.Reader, func(), error) {
+				// One goroutine so no background workers outlive the stream.
+				zr, err := zstd.NewReader(r, zstd.WithDecoderConcurrency(1))
+				if err != nil {
+					return nil, nil, err
+				}
+				return zr, zr.Close, nil
+			})
+		case "chunked":
+			opens = append(opens, func(r io.Reader) (io.Reader, func(), error) {
+				return httputil.NewChunkedReader(r), func() {}, nil
+			})
+		case "", "identity":
+		default:
+			return nil, fmt.Errorf("unsupported encoding %q, expected gzip, deflate, br, zstd, chunked or identity", name)
+		}
+	}
+	slices.Reverse(opens)
+	open := func(r io.Reader) (io.Reader, func(), error) {
+		var closers []func()
+		closeAll := func() {
+			for _, c := range slices.Backward(closers) {
+				c()
+			}
+		}
+		for _, o := range opens {
+			next, c, err := o(r)
+			if err != nil {
+				closeAll()
+				return nil, nil, err
+			}
+			r = next
+			closers = append(closers, c)
+		}
+		return r, closeAll, nil
+	}
+	d := &Decoder{
+		ctx:    ctx,
+		resume: make(chan []byte),
+		paused: make(chan pauseReason),
+		done:   make(chan struct{}),
+	}
+	go d.run(open)
+	d.wait()
+	return d, nil
+}
+
+// Write decodes the next chunk and returns up to about 1 MB of output.
+// @example
+// ```javascript
+// const compress = require('nuclei/compress');
+// const d = compress.NewDecoder('gzip');
+// const out = d.Write(chunk);
+// ```
+func (d *Decoder) Write(chunk []byte) ([]byte, error) {
+	if d.done == nil {
+		return nil, errNotCreatedByNewDecoder
+	}
+	if d.inputEnded {
+		return nil, errors.New("decoder is closed")
+	}
+	if d.state == outputFull {
+		return nil, errors.New("decoded bytes are waiting: call Read until it returns no bytes before writing more")
+	}
+	if d.state == needInput && len(chunk) > 0 {
+		// The decode goroutine may still hold the chunk after Write returns.
+		d.resumeWith(bytes.Clone(chunk))
+	}
+	return d.result()
+}
+
+// Read returns more decoded bytes, or none once the decoder needs input.
+// @example
+// ```javascript
+// const compress = require('nuclei/compress');
+// const d = compress.NewDecoder('gzip');
+// for (let out = d.Write(chunk); out.length > 0; out = d.Read()) log(out.length);
+// ```
+func (d *Decoder) Read() ([]byte, error) {
+	if d.done == nil {
+		return nil, errNotCreatedByNewDecoder
+	}
+	d.advance()
+	return d.result()
+}
+
+// Close ends the input and returns the last decoded bytes. A truncated
+// stream errors once the bytes before the cut have been returned.
+// @example
+// ```javascript
+// const compress = require('nuclei/compress');
+// const d = compress.NewDecoder('gzip');
+// d.Write(chunk);
+// for (let out = d.Close(); out.length > 0; out = d.Read()) log(out.length);
+// ```
+func (d *Decoder) Close() ([]byte, error) {
+	if d.done == nil {
+		return nil, errNotCreatedByNewDecoder
+	}
+	d.inputEnded = true
+	d.advance()
+	return d.result()
+}
+
+// Finished reports whether a stream that marks its own end, such as a
+// chunked body, has ended and all its output was read.
+// @example
+// ```javascript
+// const compress = require('nuclei/compress');
+// const d = compress.NewDecoder('gzip, chunked');
+// while (!d.Finished()) for (let out = d.Write(conn.Recv(65536)); out.length > 0; out = d.Read()) log(out.length);
+// ```
+func (d *Decoder) Finished() bool {
+	return d.state == finished && len(d.out) == 0
+}
+
+var errNotCreatedByNewDecoder = errors.New("decoder was not created with compress.NewDecoder")
+
+func (d *Decoder) advance() {
+	for len(d.out) == 0 && (d.state == outputFull || d.state == needInput && d.inputEnded) {
+		d.resumeWith(nil)
+	}
+}
+
+func (d *Decoder) result() ([]byte, error) {
+	out := d.out
+	d.out = nil
+	if len(out) == 0 && d.state == finished {
+		return nil, d.err
+	}
+	return out, nil
+}
+
+func (d *Decoder) resumeWith(chunk []byte) {
+	select {
+	case d.resume <- chunk:
+		d.wait()
+	case <-d.done:
+		d.state = finished
+	}
+}
+
+func (d *Decoder) wait() {
+	select {
+	case d.state = <-d.paused:
+	case <-d.done:
+		d.state = finished
+	}
+}
+
+func (d *Decoder) run(open func(io.Reader) (io.Reader, func(), error)) {
+	defer close(d.done)
+	r, closeReader, err := open(decoderInput{d})
+	if err != nil {
+		d.err = err
+		return
+	}
+	defer closeReader()
+	_, err = io.Copy(decoderOutput{d}, r)
+	d.err = err
+}
+
+func (d *Decoder) pause(reason pauseReason) ([]byte, error) {
+	select {
+	case d.paused <- reason:
+	case <-d.ctx.Done():
+		return nil, context.Cause(d.ctx)
+	}
+	select {
+	case chunk := <-d.resume:
+		return chunk, nil
+	case <-d.ctx.Done():
+		return nil, context.Cause(d.ctx)
+	}
+}
+
+type decoderInput struct{ d *Decoder }
+
+func (in decoderInput) Read(p []byte) (int, error) {
+	d := in.d
+	for len(d.pending) == 0 {
+		if d.eof {
+			return 0, io.EOF
+		}
+		chunk, err := d.pause(needInput)
+		if err != nil {
+			return 0, err
+		}
+		if chunk == nil {
+			d.eof = true
+		}
+		d.pending = chunk
+	}
+	n := copy(p, d.pending)
+	d.pending = d.pending[n:]
+	return n, nil
+}
+
+type decoderOutput struct{ d *Decoder }
+
+func (out decoderOutput) Write(p []byte) (int, error) {
+	d := out.d
+	d.out = append(d.out, p...)
+	if len(d.out) >= maxDecodedChunk {
+		if _, err := d.pause(outputFull); err != nil {
+			return 0, err
+		}
+	}
+	return len(p), nil
+}

pkg/js/libs/compress/decoder_test.go

@@ -0,0 +1,192 @@
+package compress
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"math/rand"
+	"net/http/httputil"
+	"testing"
+	"time"
+
+	"github.com/andybalholm/brotli"
+	"github.com/klauspost/compress/gzip"
+	"github.com/klauspost/compress/zlib"
+	"github.com/klauspost/compress/zstd"
+	"github.com/stretchr/testify/require"
+)
+
+func compressed(t *testing.T, encoding string, data []byte) []byte {
+	t.Helper()
+	var buf bytes.Buffer
+	var w io.WriteCloser
+	switch encoding {
+	case "gzip":
+		w = gzip.NewWriter(&buf)
+	case "deflate":
+		w = zlib.NewWriter(&buf)
+	case "br":
+		w = brotli.NewWriter(&buf)
+	case "zstd":
+		zw, err := zstd.NewWriter(&buf)
+		require.NoError(t, err)
+		w = zw
+	case "identity":
+		return data
+	}
+	_, err := w.Write(data)
+	require.NoError(t, err)
+	require.NoError(t, w.Close())
+	return buf.Bytes()
+}
+
+func decodeInChunks(t *testing.T, d *Decoder, input []byte) ([]byte, error) {
+	t.Helper()
+	rng := rand.New(rand.NewSource(1))
+	var decoded []byte
+	collect := func(out []byte, err error) bool {
+		require.LessOrEqual(t, len(out), maxDecodedChunk+64<<10)
+		decoded = append(decoded, out...)
+		return err == nil && len(out) > 0
+	}
+	drain := func(out []byte, err error) error {
+		for collect(out, err) {
+			out, err = d.Read()
+		}
+		return err
+	}
+	for len(input) > 0 {
+		n := min(len(input), 1+rng.Intn(70000))
+		out, err := d.Write(input[:n])
+		if err := drain(out, err); err != nil {
+			return decoded, err
+		}
+		input = input[n:]
+	}
+	out, err := d.Close()
+	return decoded, drain(out, err)
+}
+
+func TestDecoderMatchesWholeBodyDecode(t *testing.T) {
+	data := bytes.Repeat([]byte("nuclei streaming decoder "), 400000)
+	for _, encoding := range []string{"gzip", "deflate", "br", "zstd", "identity"} {
+		t.Run(encoding, func(t *testing.T) {
+			d, err := NewDecoder(t.Context(), encoding)
+			require.NoError(t, err)
+			decoded, err := decodeInChunks(t, d, compressed(t, encoding, data))
+			require.NoError(t, err)
+			require.Equal(t, data, decoded)
+		})
+	}
+}
+
+func chunked(t *testing.T, data []byte) []byte {
+	t.Helper()
+	var buf bytes.Buffer
+	w := httputil.NewChunkedWriter(&buf)
+	for len(data) > 0 {
+		n := min(len(data), 8000)
+		_, err := w.Write(data[:n])
+		require.NoError(t, err)
+		data = data[n:]
+	}
+	require.NoError(t, w.Close())
+	buf.WriteString("\r\n")
+	return buf.Bytes()
+}
+
+func TestDecoderDecodesChunkedTransfer(t *testing.T) {
+	data := bytes.Repeat([]byte("nuclei chunked decoder "), 400000)
+	for _, encoding := range []string{"gzip", "deflate", "br", "zstd", "identity"} {
+		t.Run(encoding, func(t *testing.T) {
+			d, err := NewDecoder(t.Context(), encoding+", chunked")
+			require.NoError(t, err)
+			decoded, err := decodeInChunks(t, d, chunked(t, compressed(t, encoding, data)))
+			require.NoError(t, err)
+			require.Equal(t, data, decoded)
+		})
+	}
+}
+
+func TestDecoderFinishesAtLastChunk(t *testing.T) {
+	data := bytes.Repeat([]byte("finished "), 1000)
+	d, err := NewDecoder(t.Context(), "gzip, chunked")
+	require.NoError(t, err)
+	input := chunked(t, compressed(t, "gzip", data))
+
+	half := len(input) / 2
+	_, err = d.Write(input[:half])
+	require.NoError(t, err)
+	require.False(t, d.Finished())
+
+	out, err := d.Write(input[half:])
+	require.NoError(t, err)
+	var decoded []byte
+	for ; len(out) > 0; out, err = d.Read() {
+		decoded = append(decoded, out...)
+	}
+	require.NoError(t, err)
+	require.Equal(t, data, decoded)
+	require.True(t, d.Finished(), "decoder must finish without Close once the last chunk arrives")
+}
+
+func TestDecoderAppliesCodingsInReverse(t *testing.T) {
+	data := bytes.Repeat([]byte("two codings "), 100000)
+	input := compressed(t, "br", compressed(t, "gzip", data))
+	d, err := NewDecoder(t.Context(), "gzip, br")
+	require.NoError(t, err)
+	decoded, err := decodeInChunks(t, d, input)
+	require.NoError(t, err)
+	require.Equal(t, data, decoded)
+}
+
+func TestDecoderReportsTruncatedStream(t *testing.T) {
+	data := bytes.Repeat([]byte("truncated "), 200000)
+	for _, encoding := range []string{"gzip", "deflate", "br", "zstd", "identity, chunked"} {
+		t.Run(encoding, func(t *testing.T) {
+			var input []byte
+			if encoding == "identity, chunked" {
+				input = chunked(t, data)
+			} else {
+				input = compressed(t, encoding, data)
+			}
+			d, err := NewDecoder(t.Context(), encoding)
+			require.NoError(t, err)
+			decoded, err := decodeInChunks(t, d, input[:len(input)/2])
+			require.Error(t, err)
+			require.True(t, bytes.HasPrefix(data, decoded), "bytes before the cut must still be handed back")
+		})
+	}
+}
+
+func TestDecoderStopsWhenContextEnds(t *testing.T) {
+	ctx, cancel := context.WithCancel(t.Context())
+	d, err := NewDecoder(ctx, "gzip")
+	require.NoError(t, err)
+	_, err = d.Write(compressed(t, "gzip", []byte("abandoned"))[:5])
+	require.NoError(t, err)
+
+	cancel()
+	select {
+	case <-d.done:
+	case <-time.After(time.Second):
+		t.Fatal("decode goroutine outlived its context")
+	}
+}
+
+func TestNewDecoderRejectsUnknownEncoding(t *testing.T) {
+	_, err := NewDecoder(t.Context(), "compress")
+	require.Error(t, err)
+	_, err = NewDecoder(t.Context(), "gzip, compress")
+	require.Error(t, err)
+}
+
+func TestDecoderNotCreatedByNewDecoderErrors(t *testing.T) {
+	var d Decoder
+	_, err := d.Write([]byte("x"))
+	require.ErrorIs(t, err, errNotCreatedByNewDecoder)
+	_, err = d.Read()
+	require.ErrorIs(t, err, errNotCreatedByNewDecoder)
+	_, err = d.Close()
+	require.ErrorIs(t, err, errNotCreatedByNewDecoder)
+}

pkg/js/libs/hash/hash.go

@@ -0,0 +1,100 @@
+// Package hash exposes incremental hashes to nuclei JavaScript templates.
+package hash
+
+import (
+	"crypto/md5"
+	"crypto/sha1"
+	"crypto/sha256"
+	"crypto/sha512"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"hash"
+	"strings"
+
+	"github.com/spaolacci/murmur3"
+)
+
+type (
+	// Hash is a running hash.
+	// @example
+	// ```javascript
+	// const hash = require('nuclei/hash');
+	// const h = hash.New('sha256');
+	// h.WriteString('hello');
+	// log(h.Sum());
+	// ```
+	Hash struct {
+		h    hash.Hash
+		mmh3 bool
+	}
+)
+
+// New returns a running hash for md5, sha1, sha256, sha512 or mmh3. Sum
+// matches the DSL function of the same name.
+// @example
+// ```javascript
+// const hash = require('nuclei/hash');
+// const h = hash.New('sha256');
+// ```
+func New(algorithm string) (*Hash, error) {
+	switch strings.ToLower(algorithm) {
+	case "md5":
+		return &Hash{h: md5.New()}, nil
+	case "sha1":
+		return &Hash{h: sha1.New()}, nil
+	case "sha256":
+		return &Hash{h: sha256.New()}, nil
+	case "sha512":
+		return &Hash{h: sha512.New()}, nil
+	case "mmh3":
+		return &Hash{h: murmur3.New32WithSeed(0), mmh3: true}, nil
+	}
+	return nil, fmt.Errorf("unsupported hash algorithm %q, expected md5, sha1, sha256, sha512 or mmh3", algorithm)
+}
+
+// Write adds data to the hash.
+// @example
+// ```javascript
+// const hash = require('nuclei/hash');
+// const h = hash.New('sha256');
+// h.Write([104, 105]);
+// ```
+func (h *Hash) Write(data []byte) error {
+	if h.h == nil {
+		return errNotCreatedByNew
+	}
+	_, _ = h.h.Write(data)
+	return nil
+}
+
+// WriteString adds the string data to the hash.
+// @example
+// ```javascript
+// const hash = require('nuclei/hash');
+// const h = hash.New('sha256');
+// h.WriteString('hi');
+// ```
+func (h *Hash) WriteString(data string) error {
+	return h.Write([]byte(data))
+}
+
+// Sum returns the hash of the data written so far, formatted as the DSL does.
+// @example
+// ```javascript
+// const hash = require('nuclei/hash');
+// const h = hash.New('mmh3');
+// h.WriteString('hello');
+// log(h.Sum());
+// ```
+func (h *Hash) Sum() (string, error) {
+	if h.h == nil {
+		return "", errNotCreatedByNew
+	}
+	if h.mmh3 {
+		return fmt.Sprintf("%d", int32(h.h.(hash.Hash32).Sum32())), nil
+	}
+	return hex.EncodeToString(h.h.Sum(nil)), nil
+}
+
+var errNotCreatedByNew = errors.New("hash was not created with hash.New")

pkg/js/libs/hash/hash_test.go

@@ -0,0 +1,43 @@
+package hash
+
+import (
+	"testing"
+
+	"github.com/projectdiscovery/dsl"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSumMatchesDSLAcrossChunks(t *testing.T) {
+	data := make([]byte, 3<<20+7)
+	for i := range data {
+		data[i] = byte(i * 31)
+	}
+	for _, algorithm := range []string{"md5", "sha1", "sha256", "sha512", "mmh3"} {
+		t.Run(algorithm, func(t *testing.T) {
+			h, err := New(algorithm)
+			require.NoError(t, err)
+			for chunk := data; len(chunk) > 0; {
+				n := min(len(chunk), 65521)
+				require.NoError(t, h.Write(chunk[:n]))
+				chunk = chunk[n:]
+			}
+			want, err := dsl.EvalExpr(algorithm+"(body)", map[string]interface{}{"body": string(data)})
+			require.NoError(t, err)
+			sum, err := h.Sum()
+			require.NoError(t, err)
+			require.Equal(t, want, sum)
+		})
+	}
+}
+
+func TestNewRejectsUnknownAlgorithm(t *testing.T) {
+	_, err := New("crc32")
+	require.Error(t, err)
+}
+
+func TestHashNotCreatedByNewErrors(t *testing.T) {
+	var h Hash
+	require.ErrorIs(t, h.WriteString("x"), errNotCreatedByNew)
+	_, err := h.Sum()
+	require.ErrorIs(t, err, errNotCreatedByNew)
+}

pkg/js/libs/ipmi/ipmi.go

@@ -0,0 +1,394 @@
+package ipmi
+
+import (
+	"context"
+	"crypto/hmac"
+	"crypto/md5"
+	"crypto/sha1"
+	"encoding/hex"
+	"errors"
+	"fmt"
+)
+
+type (
+	// AuthCapabilities is what a BMC advertises before any login, from Get
+	// Channel Authentication Capabilities.
+	// @example
+	// ```javascript
+	// const ipmi = require('nuclei/ipmi');
+	// const caps = ipmi.GetAuthCapabilities('acme.com', 623);
+	// log(toJSON(caps));
+	// ```
+	AuthCapabilities struct {
+		// IPMI20 is true when the BMC supports IPMI 2.0 (RMCP+).
+		IPMI20 bool
+		// AuthTypes are the IPMI 1.5 authentication types the channel
+		// accepts: none, md2, md5, straight (cleartext password), oem.
+		AuthTypes []string
+		// AnonymousLogin is true when a null username with a null password
+		// is accepted.
+		AnonymousLogin bool
+		// NullUsernames is true when accounts with an empty name are enabled.
+		NullUsernames bool
+		// NonNullUsernames is true when named accounts are enabled.
+		NonNullUsernames bool
+		// PerMessageAuth is false when the BMC skips authenticating
+		// messages after login.
+		PerMessageAuth bool
+		// UserLevelAuth is false when user-level commands skip
+		// authentication.
+		UserLevelAuth bool
+		// OEMID is the IANA enterprise number of the BMC vendor, or 0.
+		OEMID int
+	}
+
+	// RAKPHash is the HMAC a BMC returns for a user during RMCP+ session
+	// setup (CVE-2013-4786). It can be checked offline against candidate
+	// passwords, which tests credentials without a login attempt.
+	// @example
+	// ```javascript
+	// const ipmi = require('nuclei/ipmi');
+	// const hash = ipmi.GetRAKPHash('acme.com', 623, 'ADMIN');
+	// log(hash.Hashcat);
+	// ```
+	RAKPHash struct {
+		Username string
+		// Algorithm is the HMAC the BMC used: sha1 or md5.
+		Algorithm string
+		// Salt and HMAC are hex encoded; Salt is everything the HMAC covers.
+		Salt string
+		HMAC string
+		// Hashcat is the hash in hashcat mode 7300 format, for sha1 only.
+		Hashcat string
+	}
+
+	// Client holds one RMCP+ session, for commands that need a login.
+	// Close it when done: BMCs allow only a few sessions at a time.
+	// @example
+	// ```javascript
+	// const ipmi = require('nuclei/ipmi');
+	// const client = new ipmi.Client();
+	// client.Login('acme.com', 623, 'ADMIN', 'ADMIN', 3);
+	// const id = client.Command(0x06, 0x01, []);
+	// client.Close();
+	// ```
+	Client struct {
+		session *established
+	}
+
+	// CommandResponse is the reply to an IPMI command.
+	CommandResponse struct {
+		// CompletionCode is 0 on success.
+		CompletionCode int
+		Data           []byte
+	}
+)
+
+var authTypes = []struct {
+	bit  byte
+	name string
+}{{0x01, "none"}, {0x02, "md2"}, {0x04, "md5"}, {0x10, "straight"}, {0x20, "oem"}}
+
+// Ping reports whether the host answers an RMCP presence ping and advertises
+// IPMI support.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const isIPMI = ipmi.Ping('acme.com', 623);
+// log(isIPMI);
+// ```
+func Ping(ctx context.Context, host string, port int) (bool, error) {
+	s, err := dial(ctx, host, port)
+	if err != nil {
+		return false, err
+	}
+	defer s.close()
+	return s.ping()
+}
+
+// GetAuthCapabilities returns the authentication capabilities the BMC
+// advertises on the current channel.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const caps = ipmi.GetAuthCapabilities('acme.com', 623);
+// log(caps.AnonymousLogin);
+// ```
+func GetAuthCapabilities(ctx context.Context, host string, port int) (*AuthCapabilities, error) {
+	s, err := dial(ctx, host, port)
+	if err != nil {
+		return nil, err
+	}
+	defer s.close()
+
+	// bit 7 asks for the IPMI 2.0 extended data; an IPMI 1.5 only BMC
+	// rejects it, so ask again without
+	data, err := s.command(cmdGetChannelAuthCaps, []byte{0x80 | currentChannel, privAdmin})
+	if err != nil {
+		if data, err = s.command(cmdGetChannelAuthCaps, []byte{currentChannel, privAdmin}); err != nil {
+			return nil, err
+		}
+	}
+	return parseAuthCapabilities(data)
+}
+
+// parseAuthCapabilities decodes the Get Channel Authentication Capabilities
+// response data (IPMI v2.0 table 22-15).
+func parseAuthCapabilities(data []byte) (*AuthCapabilities, error) {
+	if len(data) < 8 {
+		return nil, fmt.Errorf("short channel authentication capabilities response")
+	}
+	caps := &AuthCapabilities{
+		IPMI20:           data[1]&0x80 != 0 && data[3]&0x02 != 0,
+		AnonymousLogin:   data[2]&0x01 != 0,
+		NullUsernames:    data[2]&0x02 != 0,
+		NonNullUsernames: data[2]&0x04 != 0,
+		UserLevelAuth:    data[2]&0x08 == 0,
+		PerMessageAuth:   data[2]&0x10 == 0,
+		OEMID:            int(data[4]) | int(data[5])<<8 | int(data[6])<<16,
+	}
+	for _, authType := range authTypes {
+		if data[1]&authType.bit != 0 {
+			caps.AuthTypes = append(caps.AuthTypes, authType.name)
+		}
+	}
+	return caps, nil
+}
+
+// GetSystemGUID returns the BMC system GUID, which vendors derive from
+// serial numbers or MAC addresses.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const guid = ipmi.GetSystemGUID('acme.com', 623);
+// log(guid);
+// ```
+func GetSystemGUID(ctx context.Context, host string, port int) (string, error) {
+	s, err := dial(ctx, host, port)
+	if err != nil {
+		return "", err
+	}
+	defer s.close()
+
+	data, err := s.command(cmdGetSystemGUID, nil)
+	if err != nil {
+		return "", err
+	}
+	if len(data) < 16 {
+		return "", fmt.Errorf("short system guid response")
+	}
+	return hex.EncodeToString(data[:16]), nil
+}
+
+// GetCipherSuites returns the IDs of the RMCP+ cipher suites the BMC
+// offers. Cipher suite 0 authenticates nothing, so any password logs in.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const suites = ipmi.GetCipherSuites('acme.com', 623);
+// log(suites.includes(0));
+// ```
+func GetCipherSuites(ctx context.Context, host string, port int) ([]int, error) {
+	s, err := dial(ctx, host, port)
+	if err != nil {
+		return nil, err
+	}
+	defer s.close()
+
+	// the records come in pages of 16 bytes; a shorter page is the last
+	var records []byte
+	for index := byte(0); index < 64; index++ {
+		data, err := s.command(cmdGetCipherSuites, []byte{currentChannel, 0x00, 0x80 | index})
+		if err != nil {
+			return nil, err
+		}
+		if len(data) > 0 {
+			records = append(records, data[1:]...)
+		}
+		if len(data) < 17 {
+			break
+		}
+	}
+
+	return parseCipherSuites(records), nil
+}
+
+// parseCipherSuites returns the suite IDs in Get Channel Cipher Suites
+// record data. A record starts with 0xc0 (standard) or 0xc1 (oem, followed
+// by a 3 byte IANA); algorithm bytes are tagged below 0xc0, so they never
+// look like a record start.
+func parseCipherSuites(records []byte) []int {
+	suites := []int{}
+	for i := 0; i < len(records); i++ {
+		switch records[i] {
+		case 0xc0:
+			if i+1 < len(records) {
+				suites = append(suites, int(records[i+1]))
+				i++
+			}
+		case 0xc1:
+			if i+1 < len(records) {
+				suites = append(suites, int(records[i+1]))
+				i += 4
+			}
+		}
+	}
+	return suites
+}
+
+// GetRAKPHash starts an RMCP+ session as username and returns the HMAC the
+// BMC answers with. The session is never completed, so no login is
+// attempted; the BMC drops the half-open session after its timeout. It fails
+// when the BMC rejects the username.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const hash = ipmi.GetRAKPHash('acme.com', 623, 'ADMIN');
+// log(ipmi.CheckRAKPPassword(hash, 'ADMIN'));
+// ```
+func GetRAKPHash(ctx context.Context, host string, port int, username string) (*RAKPHash, error) {
+	s, err := dial(ctx, host, port)
+	if err != nil {
+		return nil, err
+	}
+	defer s.close()
+
+	// the session is never completed, so no login is attempted; md5 is for
+	// BMCs that refuse sha1
+	var h *handshake
+	for _, auth := range []byte{authHMACSHA1, authHMACMD5} {
+		if h, err = s.startSession(algorithms{auth: auth}, username, privAdmin); err == nil {
+			break
+		}
+		var refused *rakpError
+		if !errors.As(err, &refused) || refused.step != "the session" {
+			return nil, err
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	hash := &RAKPHash{Username: username, Algorithm: "sha1", Salt: hex.EncodeToString(h.rakp2Salt()), HMAC: hex.EncodeToString(h.bmcMAC)}
+	if h.auth == authHMACMD5 {
+		hash.Algorithm = "md5"
+	} else {
+		hash.Hashcat = hash.Salt + ":" + hash.HMAC
+	}
+	return hash, nil
+}
+
+// CheckRAKPPassword reports whether password produced hash. It runs offline,
+// so it can test any number of passwords without touching the BMC.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const hash = ipmi.GetRAKPHash('acme.com', 623, 'ADMIN');
+// log(ipmi.CheckRAKPPassword(hash, 'ADMIN'));
+// ```
+func CheckRAKPPassword(hash *RAKPHash, password string) bool {
+	if hash == nil {
+		return false
+	}
+	salt, err := hex.DecodeString(hash.Salt)
+	if err != nil {
+		return false
+	}
+	want, err := hex.DecodeString(hash.HMAC)
+	if err != nil {
+		return false
+	}
+	newHash := sha1.New
+	if hash.Algorithm == "md5" {
+		newHash = md5.New
+	}
+	return hmac.Equal(hmacOf(newHash, []byte(password), salt), want)
+}
+
+// FindRAKPPassword returns the first of passwords that produced hash, or an
+// empty string.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const hash = ipmi.GetRAKPHash('acme.com', 623, 'root');
+// log(ipmi.FindRAKPPassword(hash, ['calvin', 'root', 'admin']));
+// ```
+func FindRAKPPassword(hash *RAKPHash, passwords []string) string {
+	for _, password := range passwords {
+		if CheckRAKPPassword(hash, password) {
+			return password
+		}
+	}
+	return ""
+}
+
+// Login opens an RMCP+ session as username with the given cipher suite
+// (0, 1, 2, 3 or 6). Cipher suite 0 skips authentication, so a BMC
+// that allows it accepts any password. A rejected login is an error.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const client = new ipmi.Client();
+// client.Login('acme.com', 623, 'ADMIN', 'not-the-password', 0);
+// ```
+func (c *Client) Login(ctx context.Context, host string, port int, username string, password string, cipherSuite int) (bool, error) {
+	alg, ok := cipherSuites[cipherSuite]
+	if !ok {
+		return false, fmt.Errorf("unsupported cipher suite %d", cipherSuite)
+	}
+	c.Close()
+	s, err := dial(ctx, host, port)
+	if err != nil {
+		return false, err
+	}
+	h, err := s.startSession(alg, username, privAdmin)
+	if err != nil {
+		s.close()
+		return false, err
+	}
+	k, err := s.finishSession(h, password)
+	if err != nil {
+		s.close()
+		return false, err
+	}
+	c.session = &established{session: s, algorithms: alg, keys: k, bmcSessionID: h.bmcSessionID, consoleSessionID: h.consoleSessionID}
+	return true, nil
+}
+
+// Command sends an IPMI request in the session, such as Get Device ID
+// (netFn 0x06, cmd 0x01) or Set Session Privilege Level (0x06, 0x3b).
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const client = new ipmi.Client();
+// client.Login('acme.com', 623, 'ADMIN', 'ADMIN', 3);
+// const admin = client.Command(0x06, 0x3b, [0x04]).CompletionCode == 0;
+// client.Close();
+// ```
+func (c *Client) Command(netFn int, cmd int, data []byte) (*CommandResponse, error) {
+	if c.session == nil {
+		return nil, fmt.Errorf("not logged in")
+	}
+	code, reply, err := c.session.command(byte(netFn), byte(cmd), data)
+	if err != nil {
+		return nil, err
+	}
+	return &CommandResponse{CompletionCode: int(code), Data: reply}, nil
+}
+
+// Close ends the session on the BMC, freeing its slot.
+// @example
+// ```javascript
+// const ipmi = require('nuclei/ipmi');
+// const client = new ipmi.Client();
+// client.Login('acme.com', 623, 'ADMIN', 'ADMIN', 3);
+// client.Close();
+// ```
+func (c *Client) Close() {
+	if c.session == nil {
+		return
+	}
+	_, _, _ = c.session.command(netFnApp, cmdCloseSession, c.session.bmcSessionID)
+	c.session.close()
+	c.session = nil
+}

pkg/js/libs/ipmi/ipmi_test.go

@@ -0,0 +1,178 @@
+package ipmi
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha1"
+	"encoding/hex"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/stretchr/testify/require"
+)
+
+// The fixtures were captured from OpenIPMI's ipmi_sim with an enabled user
+// with an empty name and password, ADMIN/ADMIN and root/calvin.
+
+func mustHex(t *testing.T, s string) []byte {
+	t.Helper()
+	data, err := hex.DecodeString(s)
+	require.NoError(t, err)
+	return data
+}
+
+func TestParseAuthCapabilities(t *testing.T) {
+	caps, err := parseAuthCapabilities(mustHex(t, "0197050300000000"))
+	require.NoError(t, err)
+	require.Equal(t, &AuthCapabilities{
+		IPMI20:           true,
+		AuthTypes:        []string{"none", "md2", "md5", "straight"},
+		AnonymousLogin:   true,
+		NonNullUsernames: true,
+		PerMessageAuth:   true,
+		UserLevelAuth:    true,
+	}, caps)
+
+	_, err = parseAuthCapabilities(mustHex(t, "0197"))
+	require.Error(t, err)
+}
+
+func TestParseCipherSuites(t *testing.T) {
+	records := mustHex(t, "c000004080c001014080c002014180c003014181c004014182c005014183c006024080c007024280c008024281c009024282c00a024283c00b024380c00c024381c00d024382c00e024383")
+	require.Equal(t, []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, parseCipherSuites(records))
+
+	// an oem record carries a 3 byte IANA before its algorithms
+	require.Equal(t, []int{1, 7}, parseCipherSuites(mustHex(t, "c0010140c107d70200014080")))
+}
+
+func TestRAKPPasswordChecksAreOffline(t *testing.T) {
+	// hashcat -m 7300 cracks this hash to calvin as well
+	hash := &RAKPHash{
+		Username: "root",
+		Salt:     "988200cd0402000069b30c7a5e3deb30504c5b76f7b1840d5e36439998d9e0f59ae49b09119a10b2a123456789abcdefa123456789abcdef1404726f6f74",
+		HMAC:     "23c711e5c7a737c3c0beb9f4680ef31fa6aad398",
+	}
+	require.True(t, CheckRAKPPassword(hash, "calvin"))
+	require.False(t, CheckRAKPPassword(hash, "ADMIN"))
+	require.Equal(t, "calvin", FindRAKPPassword(hash, []string{"admin", "root", "calvin"}))
+	require.Empty(t, FindRAKPPassword(hash, []string{"admin"}))
+	require.False(t, CheckRAKPPassword(nil, "calvin"))
+	require.False(t, CheckRAKPPassword(&RAKPHash{Salt: "zz", HMAC: "00"}, "calvin"))
+}
+
+func TestRequestsHonourNetworkPolicy(t *testing.T) {
+	execID := "ipmi-deny"
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: execID, ExcludeTargets: []string{"203.0.113.50"}}))
+	t.Cleanup(func() { protocolstate.Close(execID) })
+	ctx := context.WithValue(context.Background(), "executionId", execID) //nolint:staticcheck
+
+	_, err := GetRAKPHash(ctx, "203.0.113.50", 623, "ADMIN")
+	require.ErrorContains(t, err, "denied")
+	require.NotErrorIs(t, err, errNoResponse, "denied before sending, not timed out")
+	_, err = Ping(ctx, "203.0.113.50", 623)
+	require.ErrorContains(t, err, "denied")
+}
+
+func TestPayloadEncryptionRoundTrips(t *testing.T) {
+	key := mustHex(t, "000102030405060708090a0b0c0d0e0f")
+	for size := range 40 {
+		payload := make([]byte, size)
+		for i := range payload {
+			payload[i] = byte(i)
+		}
+		sealed, err := encryptPayload(key, payload)
+		require.NoError(t, err)
+		require.Zero(t, len(sealed)%16, "iv and padded blocks")
+		opened, err := decryptPayload(key, sealed)
+		require.NoError(t, err)
+		require.Equal(t, payload, opened)
+	}
+	_, err := decryptPayload(key, []byte{1, 2, 3})
+	require.Error(t, err)
+}
+
+func TestSignAlignsTheIntegrityPad(t *testing.T) {
+	e := &established{algorithms: cipherSuites[3], keys: &keys{integrity: make([]byte, 20)}}
+	for size := range 8 {
+		packet := append(rmcpHeader(rmcpClassIPMI), make([]byte, 12+size)...)
+		signed := e.sign(packet)
+		// everything from the auth type through the next header is a
+		// multiple of 4, then 12 bytes of HMAC-SHA1-96
+		require.Zero(t, (len(signed)-12-4)%4)
+		require.Equal(t, byte(0x07), signed[len(signed)-13])
+	}
+}
+
+func TestLoginRejectsUnsupportedCipherSuites(t *testing.T) {
+	_, err := (&Client{}).Login(context.Background(), "127.0.0.1", 623, "ADMIN", "ADMIN", 17)
+	require.ErrorContains(t, err, "unsupported cipher suite 17")
+	_, err = (&Client{}).Command(0x06, 0x01, nil)
+	require.ErrorContains(t, err, "not logged in")
+}
+
+// capturedHandshake is a cipher suite 3 session setup with ipmi_sim for
+// ADMIN/ADMIN, up to and including RAKP message 4.
+func capturedHandshake(t *testing.T) (*handshake, []byte) {
+	return &handshake{
+		algorithms:       cipherSuites[3],
+		consoleSessionID: mustHex(t, "244a5ac8"),
+		bmcSessionID:     mustHex(t, "04170000"),
+		consoleRandom:    mustHex(t, "de862025bb0c5ee6c30a58d383d44cb5"),
+		bmcRandom:        mustHex(t, "b56fef2ee0fcab6664a019a4c88df4f6"),
+		bmcGUID:          mustHex(t, "a123456789abcdefa123456789abcdef"),
+		role:             0x14,
+		username:         "ADMIN",
+		bmcMAC:           mustHex(t, "7fac6f776553c58df508b9ff656b5eacb6c2def9"),
+	}, mustHex(t, "00000000244a5ac8231219c5fc212cdd58c09424")
+}
+
+func TestBMCProofsMatchOnlyTheRealPassword(t *testing.T) {
+	h, rakp4 := capturedHandshake(t)
+	sik := func(password string) []byte {
+		return hmacOf(sha1.New, []byte(password), h.consoleRandom, h.bmcRandom, []byte{h.role, byte(len(h.username))}, []byte(h.username))
+	}
+
+	require.Equal(t, h.bmcMAC, hmacOf(sha1.New, []byte("ADMIN"), h.rakp2Salt()), "rakp 2 code")
+	require.NotEqual(t, h.bmcMAC, hmacOf(sha1.New, []byte("wrong"), h.rakp2Salt()))
+
+	require.True(t, rakp4Valid(sha1.New, sik("ADMIN"), h, rakp4))
+	require.False(t, rakp4Valid(sha1.New, sik("wrong"), h, rakp4))
+	tampered := bytes.Clone(rakp4)
+	tampered[len(tampered)-1] ^= 0xff
+	require.False(t, rakp4Valid(sha1.New, sik("ADMIN"), h, tampered), "a forged success must not pass")
+	require.False(t, rakp4Valid(sha1.New, sik("ADMIN"), h, rakp4[:10]))
+}
+
+func TestShortCommandReplyIsRejectedNotPanicked(t *testing.T) {
+	execID := "ipmi-short"
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: execID}))
+	t.Cleanup(func() { protocolstate.Close(execID) })
+	ctx := context.WithValue(context.Background(), "executionId", execID) //nolint:staticcheck
+
+	// a reply that ends at the completion code, without the checksum
+	bmc, err := net.ListenPacket("udp", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = bmc.Close() })
+	go func() {
+		buf := make([]byte, 512)
+		for {
+			n, addr, err := bmc.ReadFrom(buf)
+			if err != nil {
+				return
+			}
+			reply := bytes.Clone(buf[:21])
+			reply[19] = buf[n-2] // echo the command
+			reply[20] = 0x00
+			_, _ = bmc.WriteTo(reply, addr)
+		}
+	}()
+
+	port := bmc.LocalAddr().(*net.UDPAddr).Port
+	ctx, cancel := context.WithTimeout(ctx, 2*time.Second)
+	defer cancel()
+	_, err = GetSystemGUID(ctx, "127.0.0.1", port)
+	require.ErrorIs(t, err, errNoResponse)
+}

pkg/js/libs/ipmi/rmcp.go

@@ -0,0 +1,173 @@
+package ipmi
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"net"
+	"time"
+
+	libnet "github.com/projectdiscovery/nuclei/v3/pkg/js/libs/net"
+)
+
+// Wire constants from the IPMI v2.0 specification and DSP0136 (ASF).
+const (
+	rmcpVersion   = 0x06
+	rmcpNoAck     = 0xff
+	rmcpClassASF  = 0x06
+	rmcpClassIPMI = 0x07
+
+	asfIANA         = 0x000011be
+	asfTypePing     = 0x80
+	asfTypePong     = 0x40
+	asfEntitiesIPMI = 0x80
+
+	authTypeNone  = 0x00
+	authTypeRMCPP = 0x06
+
+	netFnApp              = 0x06
+	cmdGetSystemGUID      = 0x37
+	cmdGetChannelAuthCaps = 0x38
+	cmdGetCipherSuites    = 0x54
+
+	bmcAddress     = 0x20
+	consoleAddress = 0x81
+	currentChannel = 0x0e
+	privAdmin      = 0x04
+
+	payloadOpenSessionRequest  = 0x10
+	payloadOpenSessionResponse = 0x11
+	payloadRAKP1               = 0x12
+	payloadRAKP2               = 0x13
+	payloadRAKP3               = 0x14
+	payloadRAKP4               = 0x15
+
+	// rakpNameOnlyLookup asks the BMC to find the user by name alone, so the
+	// role does not have to match the one the account was created with.
+	rakpNameOnlyLookup = 0x10
+
+	attempts = 2
+)
+
+var errNoResponse = errors.New("no ipmi response")
+
+// session is one UDP exchange with a BMC. UDP is lossy, so each request is
+// sent up to attempts times.
+type session struct {
+	conn    net.Conn
+	timeout time.Duration
+}
+
+func dial(ctx context.Context, host string, port int) (*session, error) {
+	conn, err := libnet.Dial(ctx, "udp", net.JoinHostPort(host, fmt.Sprint(port)))
+	if err != nil {
+		return nil, err
+	}
+	timeout := 3 * time.Second
+	if deadline, ok := ctx.Deadline(); ok {
+		timeout = min(timeout, time.Until(deadline)/attempts)
+	}
+	return &session{conn: conn, timeout: timeout}, nil
+}
+
+func (s *session) close() { _ = s.conn.Close() }
+
+// exchange sends packet and returns the first reply accepted by match.
+func (s *session) exchange(packet []byte, match func([]byte) bool) ([]byte, error) {
+	buf := make([]byte, 1024)
+	for range attempts {
+		if _, err := s.conn.Write(packet); err != nil {
+			return nil, err
+		}
+		_ = s.conn.SetReadDeadline(time.Now().Add(s.timeout))
+		for {
+			n, err := s.conn.Read(buf)
+			if err != nil {
+				break
+			}
+			if reply := buf[:n]; match(reply) {
+				return bytes.Clone(reply), nil
+			}
+		}
+	}
+	return nil, errNoResponse
+}
+
+func rmcpHeader(class byte) []byte {
+	return []byte{rmcpVersion, 0x00, rmcpNoAck, class}
+}
+
+// ping sends an ASF presence ping and reports whether the pong advertises
+// IPMI support.
+func (s *session) ping() (bool, error) {
+	packet := append(rmcpHeader(rmcpClassASF), 0, 0, 0, 0, asfTypePing, 0x00, 0x00, 0x00)
+	binary.BigEndian.PutUint32(packet[4:8], asfIANA)
+	reply, err := s.exchange(packet, func(reply []byte) bool {
+		return len(reply) >= 12 && reply[3] == rmcpClassASF && reply[8] == asfTypePong
+	})
+	if err != nil {
+		return false, err
+	}
+	// pong data: IANA (4), OEM (4), supported entities (1), interactions (1)
+	if len(reply) < 21 {
+		return false, nil
+	}
+	return reply[20]&asfEntitiesIPMI != 0, nil
+}
+
+func checksum(data []byte) byte {
+	var sum byte
+	for _, b := range data {
+		sum += b
+	}
+	return -sum
+}
+
+// command sends a session-less IPMI 1.5 request and returns the response
+// data after a successful completion code.
+func (s *session) command(cmd byte, data []byte) ([]byte, error) {
+	header := []byte{bmcAddress, netFnApp << 2}
+	body := append([]byte{consoleAddress, 0x00, cmd}, data...)
+	message := append(append(header, checksum(header)), body...)
+	message = append(message, checksum(body))
+
+	packet := append(rmcpHeader(rmcpClassIPMI), authTypeNone, 0, 0, 0, 0, 0, 0, 0, 0, byte(len(message)))
+	packet = append(packet, message...)
+
+	reply, err := s.exchange(packet, func(reply []byte) bool {
+		// rmcp (4), session header (10), then rqAddr, netFn, checksum,
+		// rsAddr, seq, cmd, completion code
+		// ... completion code, then at least the trailing checksum
+		return len(reply) >= 22 && reply[3] == rmcpClassIPMI && reply[4] == authTypeNone && reply[19] == cmd
+	})
+	if err != nil {
+		return nil, err
+	}
+	if code := reply[20]; code != 0 {
+		return nil, fmt.Errorf("ipmi command 0x%02x failed with completion code 0x%02x", cmd, code)
+	}
+	// drop the trailing checksum
+	return reply[21 : len(reply)-1], nil
+}
+
+// rmcpPlus sends an IPMI 2.0 session-setup payload and returns the reply
+// payload of the expected type.
+func (s *session) rmcpPlus(payloadType byte, payload []byte, replyType byte) ([]byte, error) {
+	packet := append(rmcpHeader(rmcpClassIPMI), authTypeRMCPP, payloadType, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+	binary.LittleEndian.PutUint16(packet[14:16], uint16(len(payload)))
+	packet = append(packet, payload...)
+
+	reply, err := s.exchange(packet, func(reply []byte) bool {
+		return len(reply) >= 16 && reply[3] == rmcpClassIPMI && reply[4] == authTypeRMCPP && reply[5]&0x3f == replyType
+	})
+	if err != nil {
+		return nil, err
+	}
+	length := int(binary.LittleEndian.Uint16(reply[14:16]))
+	if len(reply) < 16+length {
+		return nil, fmt.Errorf("truncated ipmi payload")
+	}
+	return reply[16 : 16+length], nil
+}

pkg/js/libs/ipmi/session.go

@@ -0,0 +1,398 @@
+package ipmi
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/hmac"
+	"crypto/md5"
+	"crypto/rand"
+	"crypto/sha1"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"hash"
+)
+
+// RMCP+ algorithm numbers (IPMI v2.0 tables 13-17 to 13-19).
+const (
+	authNone     = 0x00
+	authHMACSHA1 = 0x01
+	authHMACMD5  = 0x02
+
+	integrityNone       = 0x00
+	integrityHMACSHA196 = 0x01
+
+	confidentialityNone      = 0x00
+	confidentialityAESCBC128 = 0x01
+
+	payloadIPMI      = 0x00
+	payloadEncrypted = 0x80
+	payloadSigned    = 0x40
+
+	cmdCloseSession = 0x3c
+
+	// rakp status codes worth naming in errors
+	rakpInvalidRole      = 0x09
+	rakpUnauthorizedName = 0x0d
+)
+
+type algorithms struct {
+	auth, integrity, confidentiality byte
+}
+
+// cipherSuites lists the suites a session can be opened with. Suites with
+// SHA-256 or MD5 message integrity are left out until they can be checked
+// against a BMC that implements them correctly.
+var cipherSuites = map[int]algorithms{
+	0: {authNone, integrityNone, confidentialityNone},
+	1: {authHMACSHA1, integrityNone, confidentialityNone},
+	2: {authHMACSHA1, integrityHMACSHA196, confidentialityNone},
+	3: {authHMACSHA1, integrityHMACSHA196, confidentialityAESCBC128},
+	6: {authHMACMD5, integrityNone, confidentialityNone},
+}
+
+func authHash(auth byte) func() hash.Hash {
+	switch auth {
+	case authHMACSHA1:
+		return sha1.New
+	case authHMACMD5:
+		return md5.New
+	}
+	return nil
+}
+
+func hmacOf(newHash func() hash.Hash, key []byte, parts ...[]byte) []byte {
+	mac := hmac.New(newHash, key)
+	for _, part := range parts {
+		_, _ = mac.Write(part)
+	}
+	return mac.Sum(nil)
+}
+
+// handshake is the state of an RMCP+ session setup up to RAKP message 2.
+type handshake struct {
+	algorithms
+	consoleSessionID, bmcSessionID []byte
+	consoleRandom, bmcRandom       []byte
+	bmcGUID                        []byte
+	role                           byte
+	username                       string
+	// bmcMAC is the RAKP message 2 key exchange code, empty without
+	// authentication.
+	bmcMAC []byte
+}
+
+// rakpError is a non-zero status in an RMCP+ session setup reply.
+type rakpError struct {
+	step   string
+	status byte
+}
+
+func (e *rakpError) Error() string {
+	switch e.status {
+	case rakpUnauthorizedName:
+		return fmt.Sprintf("bmc rejected the username in %s (status 0x%02x)", e.step, e.status)
+	case rakpInvalidRole:
+		return fmt.Sprintf("bmc rejected the requested privilege in %s (status 0x%02x)", e.step, e.status)
+	}
+	return fmt.Sprintf("bmc refused %s with status 0x%02x", e.step, e.status)
+}
+
+// startSession opens an RMCP+ session and runs RAKP messages 1 and 2.
+func (s *session) startSession(alg algorithms, username string, privilege byte) (*handshake, error) {
+	if len(username) > 16 {
+		return nil, fmt.Errorf("ipmi usernames are at most 16 bytes")
+	}
+	h := &handshake{
+		algorithms:       alg,
+		consoleSessionID: make([]byte, 4),
+		consoleRandom:    make([]byte, 16),
+		role:             privilege | rakpNameOnlyLookup,
+		username:         username,
+	}
+	if _, err := rand.Read(h.consoleSessionID); err != nil {
+		return nil, err
+	}
+	if _, err := rand.Read(h.consoleRandom); err != nil {
+		return nil, err
+	}
+
+	open := []byte{0x00, privilege, 0x00, 0x00}
+	open = append(open, h.consoleSessionID...)
+	open = append(open,
+		0x00, 0x00, 0x00, 0x08, alg.auth, 0x00, 0x00, 0x00,
+		0x01, 0x00, 0x00, 0x08, alg.integrity, 0x00, 0x00, 0x00,
+		0x02, 0x00, 0x00, 0x08, alg.confidentiality, 0x00, 0x00, 0x00,
+	)
+	opened, err := s.rmcpPlus(payloadOpenSessionRequest, open, payloadOpenSessionResponse)
+	if err != nil {
+		return nil, err
+	}
+	if len(opened) < 2 {
+		return nil, fmt.Errorf("short open session response")
+	}
+	if opened[1] != 0 {
+		return nil, &rakpError{step: "the session", status: opened[1]}
+	}
+	if len(opened) < 12 {
+		return nil, fmt.Errorf("short open session response")
+	}
+	h.bmcSessionID = bytes.Clone(opened[8:12])
+
+	rakp1 := []byte{0x00, 0x00, 0x00, 0x00}
+	rakp1 = append(rakp1, h.bmcSessionID...)
+	rakp1 = append(rakp1, h.consoleRandom...)
+	rakp1 = append(rakp1, h.role, 0x00, 0x00, byte(len(username)))
+	rakp1 = append(rakp1, username...)
+	rakp2, err := s.rmcpPlus(payloadRAKP1, rakp1, payloadRAKP2)
+	if err != nil {
+		return nil, err
+	}
+	if len(rakp2) < 2 {
+		return nil, fmt.Errorf("short rakp message 2")
+	}
+	if rakp2[1] != 0 {
+		return nil, &rakpError{step: "rakp message 1", status: rakp2[1]}
+	}
+	if len(rakp2) < 40 {
+		return nil, fmt.Errorf("short rakp message 2")
+	}
+	h.bmcRandom = bytes.Clone(rakp2[8:24])
+	h.bmcGUID = bytes.Clone(rakp2[24:40])
+	h.bmcMAC = bytes.Clone(rakp2[40:])
+	return h, nil
+}
+
+// rakp2Salt is everything the RAKP message 2 code covers.
+func (h *handshake) rakp2Salt() []byte {
+	salt := make([]byte, 0, 58+len(h.username))
+	salt = append(salt, h.consoleSessionID...)
+	salt = append(salt, h.bmcSessionID...)
+	salt = append(salt, h.consoleRandom...)
+	salt = append(salt, h.bmcRandom...)
+	salt = append(salt, h.bmcGUID...)
+	salt = append(salt, h.role, byte(len(h.username)))
+	return append(salt, h.username...)
+}
+
+// keys are the session keys derived from the session integrity key.
+type keys struct {
+	integrity []byte // K1
+	aes       []byte // first 16 bytes of K2
+}
+
+// finishSession runs RAKP messages 3 and 4, which is where a wrong password
+// is rejected, and derives the session keys. Both directions are proven:
+// the BMC's RAKP message 2 code and RAKP message 4 integrity value must
+// match the password, so a peer that only answers with success statuses
+// cannot pass for a login.
+func (s *session) finishSession(h *handshake, password string) (*keys, error) {
+	if len(password) > 20 {
+		return nil, fmt.Errorf("ipmi passwords are at most 20 bytes")
+	}
+	newHash := authHash(h.auth)
+	if newHash != nil && !hmac.Equal(h.bmcMAC, hmacOf(newHash, []byte(password), h.rakp2Salt())) {
+		return nil, errBMCProof
+	}
+
+	rakp3 := []byte{0x00, 0x00, 0x00, 0x00}
+	rakp3 = append(rakp3, h.bmcSessionID...)
+	if newHash != nil {
+		rakp3 = append(rakp3, hmacOf(newHash, []byte(password),
+			h.bmcRandom, h.consoleSessionID, []byte{h.role, byte(len(h.username))}, []byte(h.username))...)
+	}
+	rakp4, err := s.rmcpPlus(payloadRAKP3, rakp3, payloadRAKP4)
+	if err != nil {
+		return nil, err
+	}
+	if len(rakp4) < 2 {
+		return nil, fmt.Errorf("short rakp message 4")
+	}
+	if rakp4[1] != 0 {
+		return nil, &rakpError{step: "the login", status: rakp4[1]}
+	}
+	if newHash == nil {
+		return &keys{}, nil
+	}
+
+	sik := hmacOf(newHash, []byte(password),
+		h.consoleRandom, h.bmcRandom, []byte{h.role, byte(len(h.username))}, []byte(h.username))
+	if !rakp4Valid(newHash, sik, h, rakp4) {
+		return nil, errBMCProof
+	}
+	return &keys{
+		integrity: hmacOf(newHash, sik, bytes.Repeat([]byte{0x01}, 20)),
+		aes:       hmacOf(newHash, sik, bytes.Repeat([]byte{0x02}, 20))[:16],
+	}, nil
+}
+
+// errBMCProof means the peer's authentication code does not match the
+// password: a wrong password, or something other than the BMC answering.
+var errBMCProof = errors.New("bmc authentication code does not match the password")
+
+// rakp4Valid checks the RAKP message 4 integrity value, the session key's
+// HMAC over the console random, BMC session ID and BMC GUID, truncated to
+// 12 bytes for sha1 and 16 for md5.
+func rakp4Valid(newHash func() hash.Hash, sik []byte, h *handshake, rakp4 []byte) bool {
+	size := 12
+	if h.auth == authHMACMD5 {
+		size = 16
+	}
+	if len(rakp4) < 8+size {
+		return false
+	}
+	want := hmacOf(newHash, sik, h.consoleRandom, h.bmcSessionID, h.bmcGUID)[:size]
+	return hmac.Equal(rakp4[8:8+size], want)
+}
+
+// established is an authenticated RMCP+ session.
+type established struct {
+	*session
+	algorithms
+	keys             *keys
+	bmcSessionID     []byte
+	consoleSessionID []byte
+	sequence         uint32
+	requestSeq       byte
+}
+
+// command sends an IPMI request inside the session and returns its
+// completion code and response data.
+func (e *established) command(netFn, cmd byte, data []byte) (byte, []byte, error) {
+	// the request sequence is 6 bits on the wire
+	e.requestSeq = (e.requestSeq + 1) & 0x3f
+	header := []byte{bmcAddress, netFn << 2}
+	body := append([]byte{consoleAddress, e.requestSeq << 2, cmd}, data...)
+	message := append(append(header, checksum(header)), body...)
+	message = append(message, checksum(body))
+
+	payloadType := byte(payloadIPMI)
+	if e.confidentiality == confidentialityAESCBC128 {
+		payloadType |= payloadEncrypted
+		var err error
+		if message, err = encryptPayload(e.keys.aes, message); err != nil {
+			return 0, nil, err
+		}
+	}
+	if e.integrity != integrityNone {
+		payloadType |= payloadSigned
+	}
+
+	e.sequence++
+	packet := append(rmcpHeader(rmcpClassIPMI), authTypeRMCPP, payloadType)
+	packet = append(packet, e.bmcSessionID...)
+	packet = binary.LittleEndian.AppendUint32(packet, e.sequence)
+	packet = binary.LittleEndian.AppendUint16(packet, uint16(len(message)))
+	packet = append(packet, message...)
+	if e.integrity != integrityNone {
+		packet = e.sign(packet)
+	}
+
+	// a reply must be for this session, pass the integrity check when the
+	// session is signed, and answer this request, not an earlier one that
+	// arrived late
+	var payload []byte
+	_, err := e.exchange(packet, func(reply []byte) bool {
+		payload = e.open(reply)
+		return len(payload) >= 8 && payload[4]>>2 == e.requestSeq && payload[5] == cmd
+	})
+	if err != nil {
+		return 0, nil, err
+	}
+	// rqAddr, netFn, checksum, rsAddr, seq, cmd, completion code, data,
+	// checksum
+	return payload[6], bytes.Clone(payload[7 : len(payload)-1]), nil
+}
+
+// open returns the IPMI message in a session reply, or nil when the reply
+// is not for this session or fails its integrity check.
+func (e *established) open(reply []byte) []byte {
+	if len(reply) < 16 || reply[3] != rmcpClassIPMI || reply[4] != authTypeRMCPP || reply[5]&0x3f != payloadIPMI {
+		return nil
+	}
+	if !bytes.Equal(reply[6:10], e.consoleSessionID) {
+		return nil
+	}
+	length := int(binary.LittleEndian.Uint16(reply[14:16]))
+	if len(reply) < 16+length {
+		return nil
+	}
+	if e.integrity != integrityNone {
+		if reply[5]&payloadSigned == 0 || !e.verify(reply, 16+length) {
+			return nil
+		}
+	}
+	payload := reply[16 : 16+length]
+	if reply[5]&payloadEncrypted != 0 {
+		var err error
+		if payload, err = decryptPayload(e.keys.aes, payload); err != nil {
+			return nil
+		}
+	}
+	return payload
+}
+
+// verify checks a reply's HMAC-SHA1-96 trailer: the pad after the payload,
+// pad length and next header, then the code over everything from the auth
+// type on.
+func (e *established) verify(reply []byte, payloadEnd int) bool {
+	const codeSize = 12
+	if len(reply) < payloadEnd+2+codeSize {
+		return false
+	}
+	codeStart := len(reply) - codeSize
+	if reply[codeStart-1] != 0x07 || int(reply[codeStart-2]) != codeStart-2-payloadEnd {
+		return false
+	}
+	want := hmacOf(sha1.New, e.keys.integrity, reply[4:codeStart])[:codeSize]
+	return hmac.Equal(reply[codeStart:], want)
+}
+
+// sign appends the HMAC-SHA1-96 integrity trailer: pad to a multiple of 4 from the auth
+// type on, pad length, next header, and the truncated HMAC over it all.
+func (e *established) sign(packet []byte) []byte {
+	pad := (4 - (len(packet)-4+2)%4) % 4
+	packet = append(packet, bytes.Repeat([]byte{0xff}, pad)...)
+	packet = append(packet, byte(pad), 0x07)
+	return append(packet, hmacOf(sha1.New, e.keys.integrity, packet[4:])[:12]...)
+}
+
+// encryptPayload is AES-CBC-128 with a random IV in front and the
+// confidentiality pad (1, 2, 3, ... then its length) at the end.
+func encryptPayload(key, payload []byte) ([]byte, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	pad := (aes.BlockSize - (len(payload)+1)%aes.BlockSize) % aes.BlockSize
+	plain := bytes.Clone(payload)
+	for i := 1; i <= pad; i++ {
+		plain = append(plain, byte(i))
+	}
+	plain = append(plain, byte(pad))
+
+	out := make([]byte, aes.BlockSize+len(plain))
+	if _, err := rand.Read(out[:aes.BlockSize]); err != nil {
+		return nil, err
+	}
+	cipher.NewCBCEncrypter(block, out[:aes.BlockSize]).CryptBlocks(out[aes.BlockSize:], plain)
+	return out, nil
+}
+
+func decryptPayload(key, payload []byte) ([]byte, error) {
+	if len(payload) < 2*aes.BlockSize || len(payload)%aes.BlockSize != 0 {
+		return nil, fmt.Errorf("malformed encrypted payload")
+	}
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	plain := make([]byte, len(payload)-aes.BlockSize)
+	cipher.NewCBCDecrypter(block, payload[:aes.BlockSize]).CryptBlocks(plain, payload[aes.BlockSize:])
+	pad := int(plain[len(plain)-1])
+	if pad+1 > len(plain) {
+		return nil, fmt.Errorf("malformed encrypted payload")
+	}
+	return plain[:len(plain)-pad-1], nil
+}

pkg/js/libs/mqtt/mqtt.go

@@ -0,0 +1,596 @@
+package mqtt
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"net"
+	"strconv"
+	"sync"
+	"time"
+
+	libnet "github.com/projectdiscovery/nuclei/v3/pkg/js/libs/net"
+)
+
+var (
+	defaultTimeout = 10 * time.Second
+)
+
+const (
+	maxSubscribedMessages = 1000
+	maxSubscribedBytes    = 10 * 1024 * 1024 // 10MB
+)
+
+type (
+	// Message represents an MQTT published message.
+	// @example
+	// ```javascript
+	// const mqtt = require('nuclei/mqtt');
+	// const client = new mqtt.Client();
+	// client.Connect('broker.hivemq.com', 1883);
+	// const msgs = client.Subscribe('test/topic', 2);
+	// log(msgs[0].Topic, msgs[0].Payload);
+	// ```
+	Message struct {
+		Topic   string `json:"topic"`
+		Payload string `json:"payload"`
+		QoS     int    `json:"qos"`
+		Retain  bool   `json:"retain"`
+	}
+
+	// ConnectOptions contains connection options for an MQTT broker.
+	// @example
+	// ```javascript
+	// const mqtt = require('nuclei/mqtt');
+	// const opts = new mqtt.ConnectOptions();
+	// opts.Username = 'admin';
+	// opts.Password = 'admin';
+	// ```
+	ConnectOptions struct {
+		Username           string `json:"username,omitempty"`
+		Password           string `json:"password,omitempty"`
+		ClientID           string `json:"client_id,omitempty"`
+		CleanSession       *bool  `json:"clean_session,omitempty"`
+		KeepAlive          int    `json:"keep_alive,omitempty"`
+		TLS                bool   `json:"tls,omitempty"`
+		InsecureSkipVerify *bool  `json:"insecure_skip_verify,omitempty"`
+		Timeout            int    `json:"timeout,omitempty"`
+	}
+
+	// ConnectResult is the response returned by an MQTT connection attempt.
+	// @example
+	// ```javascript
+	// const mqtt = require('nuclei/mqtt');
+	// const client = new mqtt.Client();
+	// const res = client.Connect('acme.com', 1883);
+	// log(res.Success, res.ReturnCode, res.Reason);
+	// ```
+	ConnectResult struct {
+		Success        bool   `json:"success"`
+		ReturnCode     int    `json:"return_code"`
+		Reason         string `json:"reason"`
+		SessionPresent bool   `json:"session_present"`
+	}
+
+	// Client is an MQTT client for testing MQTT broker misconfigurations and authentication.
+	// @example
+	// ```javascript
+	// const mqtt = require('nuclei/mqtt');
+	// const client = new mqtt.Client();
+	// const res = client.Connect('acme.com', 1883);
+	// if (res.Success) {
+	//     const msgs = client.Subscribe('#', 2);
+	//     client.Publish('nuclei/probe', 'test');
+	// }
+	// client.Close();
+	// ```
+	Client struct {
+		conn     net.Conn
+		packetID uint16
+		mu       sync.Mutex
+		timeout  time.Duration
+	}
+)
+
+// dial opens a network connection to host:port respecting protocolstate policy and context.
+func dial(ctx context.Context, host string, port int, useTLS bool, insecureSkipVerify bool, timeout time.Duration) (net.Conn, error) {
+	if host == "" || port <= 0 {
+		return nil, fmt.Errorf("invalid host or port")
+	}
+
+	addr := net.JoinHostPort(host, strconv.Itoa(port))
+	conn, err := libnet.Dial(ctx, "tcp", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	_ = conn.SetDeadline(time.Now().Add(timeout))
+
+	if useTLS {
+		tlsConn := tls.Client(conn, &tls.Config{
+			InsecureSkipVerify: insecureSkipVerify,
+			MinVersion:         tls.VersionTLS12,
+			ServerName:         host,
+		})
+		if err := tlsConn.HandshakeContext(ctx); err != nil {
+			_ = conn.Close()
+			return nil, fmt.Errorf("TLS handshake failed: %w", err)
+		}
+		conn = tlsConn
+	}
+
+	_ = conn.SetDeadline(time.Now().Add(timeout))
+	return conn, nil
+}
+
+// IsMQTT checks whether the target host:port is running an MQTT broker.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const isMqtt = mqtt.IsMQTT('acme.com', 1883);
+// log(isMqtt);
+// ```
+func IsMQTT(ctx context.Context, host string, port int) (bool, error) {
+	conn, err := dial(ctx, host, port, false, true, defaultTimeout)
+	if err != nil {
+		return false, err
+	}
+	defer func() { _ = conn.Close() }()
+
+	pkt, err := buildConnectPacket("nuclei-probe", "", "", true, 60)
+	if err != nil {
+		return false, err
+	}
+	_ = conn.SetWriteDeadline(time.Now().Add(defaultTimeout))
+	if _, err := conn.Write(pkt); err != nil {
+		return false, err
+	}
+
+	header, payload, err := readPacket(conn)
+	if err != nil {
+		return false, nil
+	}
+
+	// Any valid CONNACK indicates an active MQTT broker
+	if (header >> 4) == PacketConnack {
+		_, _, err := parseConnack(payload)
+		return err == nil, nil
+	}
+	return false, nil
+}
+
+// IsAnonymousAllowed checks whether an MQTT broker permits unauthenticated / anonymous login.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const allowed = mqtt.IsAnonymousAllowed('acme.com', 1883);
+// log(allowed);
+// ```
+func IsAnonymousAllowed(ctx context.Context, host string, port int) (bool, error) {
+	conn, err := dial(ctx, host, port, false, true, defaultTimeout)
+	if err != nil {
+		return false, err
+	}
+	defer func() { _ = conn.Close() }()
+
+	pkt, err := buildConnectPacket("", "", "", true, 60)
+	if err != nil {
+		return false, err
+	}
+	_ = conn.SetWriteDeadline(time.Now().Add(defaultTimeout))
+	if _, err := conn.Write(pkt); err != nil {
+		return false, err
+	}
+
+	header, payload, err := readPacket(conn)
+	if err != nil {
+		return false, err
+	}
+
+	if (header >> 4) != PacketConnack {
+		return false, fmt.Errorf("expected CONNACK, got packet type %d", header>>4)
+	}
+
+	_, returnCode, err := parseConnack(payload)
+	if err != nil {
+		return false, err
+	}
+
+	return returnCode == ConnAccepted, nil
+}
+
+// Connect connects to an MQTT broker using optional credentials and settings.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const client = new mqtt.Client();
+// const res = client.Connect('acme.com', 1883);
+// log(res.Success);
+// ```
+func (c *Client) Connect(ctx context.Context, host string, port int, options *ConnectOptions) (*ConnectResult, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.conn != nil {
+		_ = c.conn.Close()
+		c.conn = nil
+	}
+
+	timeout := defaultTimeout
+	cleanSession := true
+	keepAlive := uint16(60)
+	clientID := "nuclei"
+	var username, password string
+	useTLS := false
+	insecureSkipVerify := true
+
+	if options != nil {
+		if options.Timeout > 0 {
+			timeout = time.Duration(options.Timeout) * time.Second
+		}
+		if options.KeepAlive > 0 {
+			if options.KeepAlive > 65535 {
+				keepAlive = 65535
+			} else {
+				keepAlive = uint16(options.KeepAlive)
+			}
+		}
+		if options.ClientID != "" {
+			clientID = options.ClientID
+		}
+		if options.CleanSession != nil {
+			cleanSession = *options.CleanSession
+		}
+		if options.InsecureSkipVerify != nil {
+			insecureSkipVerify = *options.InsecureSkipVerify
+		}
+		username = options.Username
+		password = options.Password
+		useTLS = options.TLS
+	}
+
+	c.timeout = timeout
+	conn, err := dial(ctx, host, port, useTLS, insecureSkipVerify, timeout)
+	if err != nil {
+		return &ConnectResult{
+			Success:    false,
+			ReturnCode: -1,
+			Reason:     err.Error(),
+		}, err
+	}
+
+	pkt, err := buildConnectPacket(clientID, username, password, cleanSession, keepAlive)
+	if err != nil {
+		_ = conn.Close()
+		return &ConnectResult{
+			Success:    false,
+			ReturnCode: -1,
+			Reason:     err.Error(),
+		}, err
+	}
+
+	_ = conn.SetWriteDeadline(time.Now().Add(timeout))
+	if _, err := conn.Write(pkt); err != nil {
+		_ = conn.Close()
+		return &ConnectResult{
+			Success:    false,
+			ReturnCode: -1,
+			Reason:     fmt.Sprintf("failed to send CONNECT: %v", err),
+		}, err
+	}
+
+	header, payload, err := readPacket(conn)
+	if err != nil {
+		_ = conn.Close()
+		return &ConnectResult{
+			Success:    false,
+			ReturnCode: -1,
+			Reason:     fmt.Sprintf("failed to read CONNACK: %v", err),
+		}, err
+	}
+
+	if (header >> 4) != PacketConnack {
+		_ = conn.Close()
+		return &ConnectResult{
+			Success:    false,
+			ReturnCode: -1,
+			Reason:     fmt.Sprintf("unexpected packet %d (expected CONNACK)", header>>4),
+		}, fmt.Errorf("unexpected packet %d", header>>4)
+	}
+
+	sessPresent, returnCode, err := parseConnack(payload)
+	if err != nil {
+		_ = conn.Close()
+		return &ConnectResult{
+			Success:    false,
+			ReturnCode: int(returnCode),
+			Reason:     err.Error(),
+		}, err
+	}
+
+	res := &ConnectResult{
+		Success:        returnCode == ConnAccepted,
+		ReturnCode:     int(returnCode),
+		Reason:         ConnackReason(returnCode),
+		SessionPresent: sessPresent,
+	}
+
+	if res.Success {
+		c.conn = conn
+	} else {
+		_ = conn.Close()
+	}
+
+	return res, nil
+}
+
+// ConnectAuth connects to an MQTT broker with a username and password.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const client = new mqtt.Client();
+// const res = client.ConnectAuth('acme.com', 1883, 'admin', 'admin');
+// log(res.Success);
+// ```
+func (c *Client) ConnectAuth(ctx context.Context, host string, port int, username, password string) (*ConnectResult, error) {
+	clean := true
+	return c.Connect(ctx, host, port, &ConnectOptions{
+		Username:     username,
+		Password:     password,
+		CleanSession: &clean,
+	})
+}
+
+// Subscribe subscribes to a topic filter and collects received messages up to timeoutSec.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const client = new mqtt.Client();
+// client.Connect('acme.com', 1883);
+// const msgs = client.Subscribe('#', 3);
+//
+//	for (const m of msgs) {
+//	    log(m.Topic, m.Payload);
+//	}
+//
+// ```
+func (c *Client) Subscribe(ctx context.Context, topic string, timeoutSec int) ([]*Message, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.conn == nil {
+		return nil, fmt.Errorf("not connected to MQTT broker")
+	}
+
+	c.packetID++
+	if c.packetID == 0 {
+		c.packetID = 1
+	}
+	pktID := c.packetID
+
+	subPkt, err := buildSubscribePacket(pktID, topic, 0)
+	if err != nil {
+		return nil, fmt.Errorf("failed to build SUBSCRIBE: %w", err)
+	}
+
+	_ = c.conn.SetWriteDeadline(time.Now().Add(c.timeout))
+	if _, err := c.conn.Write(subPkt); err != nil {
+		_ = c.conn.Close()
+		c.conn = nil
+		return nil, fmt.Errorf("failed to send SUBSCRIBE: %w", err)
+	}
+
+	waitDuration := 2 * time.Second
+	if timeoutSec > 0 {
+		if timeoutSec > 60 {
+			timeoutSec = 60
+		}
+		waitDuration = time.Duration(timeoutSec) * time.Second
+	}
+	if deadline, ok := ctx.Deadline(); ok {
+		if remaining := time.Until(deadline); remaining < waitDuration {
+			waitDuration = remaining
+		}
+	}
+
+	readDeadline := time.Now().Add(waitDuration)
+	_ = c.conn.SetDeadline(readDeadline)
+	defer func() {
+		if c.conn != nil {
+			_ = c.conn.SetDeadline(time.Time{})
+		}
+	}()
+
+	var messages []*Message
+	var totalBytes int
+	subackReceived := false
+
+	for {
+		select {
+		case <-ctx.Done():
+			_ = c.conn.Close()
+			c.conn = nil
+			return messages, ctx.Err()
+		default:
+		}
+
+		header, payload, err := readPacket(c.conn)
+		if err != nil {
+			if errors.Is(err, errBrokenStream) {
+				// The window closed in the middle of a packet. The stream cannot be
+				// read in sync again, so the connection is dropped.
+				_ = c.conn.Close()
+				c.conn = nil
+				if !subackReceived {
+					return nil, fmt.Errorf("failed waiting for SUBACK: %w", err)
+				}
+				break
+			}
+			var netErr net.Error
+			if errors.As(err, &netErr) && netErr.Timeout() {
+				// Window finished
+				break
+			}
+			if !subackReceived {
+				_ = c.conn.Close()
+				c.conn = nil
+				return nil, fmt.Errorf("failed waiting for SUBACK: %w", err)
+			}
+			break
+		}
+
+		packetType := header >> 4
+		switch packetType {
+		case PacketSuback:
+			subackPID, grantedQoS, err := parseSuback(payload)
+			if err != nil {
+				_ = c.conn.Close()
+				c.conn = nil
+				return nil, err
+			}
+			if subackPID != pktID {
+				continue // Ignore stale/mismatched SUBACK from an earlier subscription
+			}
+			for _, qos := range grantedQoS {
+				if qos == 0x80 {
+					return nil, fmt.Errorf("subscription rejected by broker for topic %q", topic)
+				}
+			}
+			subackReceived = true
+
+		case PacketPublish:
+			msg, err := parsePublish(header, payload)
+			if err == nil {
+				messages = append(messages, msg)
+				totalBytes += len(msg.Topic) + len(msg.Payload)
+				if len(messages) >= maxSubscribedMessages || totalBytes >= maxSubscribedBytes {
+					return messages, nil
+				}
+			}
+		}
+
+		if time.Now().After(readDeadline) {
+			break
+		}
+	}
+
+	if !subackReceived {
+		_ = c.conn.Close()
+		c.conn = nil
+		return nil, fmt.Errorf("subscription timed out waiting for SUBACK")
+	}
+
+	return messages, nil
+}
+
+// Publish publishes a message payload to a topic.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const client = new mqtt.Client();
+// client.Connect('acme.com', 1883);
+// const ok = client.Publish('nuclei/test', 'probe payload');
+// log(ok);
+// ```
+func (c *Client) Publish(ctx context.Context, topic string, payload string) (bool, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.conn == nil {
+		return false, fmt.Errorf("not connected to MQTT broker")
+	}
+
+	select {
+	case <-ctx.Done():
+		return false, ctx.Err()
+	default:
+	}
+
+	pkt, err := buildPublishPacket(topic, []byte(payload), 0, false, 0)
+	if err != nil {
+		return false, fmt.Errorf("failed to build PUBLISH: %w", err)
+	}
+
+	_ = c.conn.SetWriteDeadline(time.Now().Add(5 * time.Second))
+	if _, err := c.conn.Write(pkt); err != nil {
+		_ = c.conn.Close()
+		c.conn = nil
+		return false, fmt.Errorf("failed to send PUBLISH: %w", err)
+	}
+
+	return true, nil
+}
+
+// Ping sends an MQTT PINGREQ and awaits PINGRESP.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const client = new mqtt.Client();
+// client.Connect('acme.com', 1883);
+// const alive = client.Ping();
+// log(alive);
+// ```
+func (c *Client) Ping(ctx context.Context) (bool, error) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.conn == nil {
+		return false, fmt.Errorf("not connected to MQTT broker")
+	}
+
+	select {
+	case <-ctx.Done():
+		return false, ctx.Err()
+	default:
+	}
+
+	_ = c.conn.SetDeadline(time.Now().Add(5 * time.Second))
+	_ = c.conn.SetWriteDeadline(time.Now().Add(5 * time.Second))
+	if _, err := c.conn.Write(buildPingreqPacket()); err != nil {
+		_ = c.conn.Close()
+		c.conn = nil
+		return false, fmt.Errorf("failed to send PINGREQ: %w", err)
+	}
+
+	for {
+		header, _, err := readPacket(c.conn)
+		if err != nil {
+			_ = c.conn.Close()
+			c.conn = nil
+			return false, fmt.Errorf("failed to read PINGRESP: %w", err)
+		}
+
+		packetType := header >> 4
+		if packetType == PacketPingresp {
+			return true, nil
+		}
+		if packetType == PacketPublish {
+			// Broker delivered an incoming publish message while ping was in flight; continue waiting for PINGRESP
+			continue
+		}
+		return false, fmt.Errorf("unexpected ping response packet: %d", packetType)
+	}
+}
+
+// Close cleanly disconnects and closes the connection.
+// @example
+// ```javascript
+// const mqtt = require('nuclei/mqtt');
+// const client = new mqtt.Client();
+// client.Connect('acme.com', 1883);
+// client.Close();
+// ```
+func (c *Client) Close() error {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.conn != nil {
+		_ = c.conn.SetWriteDeadline(time.Now().Add(3 * time.Second))
+		_, _ = c.conn.Write(buildDisconnectPacket())
+		err := c.conn.Close()
+		c.conn = nil
+		return err
+	}
+	return nil
+}

pkg/js/libs/mqtt/mqtt_test.go

@@ -0,0 +1,395 @@
+package mqtt
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"net"
+	"strings"
+	"testing"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/stretchr/testify/require"
+)
+
+func TestVarLengthEncoding(t *testing.T) {
+	testCases := []int{0, 1, 64, 127, 128, 16383, 16384, 2097151}
+	for _, tc := range testCases {
+		encoded, err := encodeVarLength(tc)
+		require.NoError(t, err)
+		decoded, err := decodeVarLength(bytes.NewReader(encoded))
+		require.NoError(t, err)
+		require.Equal(t, tc, decoded)
+	}
+
+	// Test negative or overflow
+	_, err := encodeVarLength(-1)
+	require.Error(t, err)
+	_, err = encodeVarLength(MaxRemainingLength + 1)
+	require.Error(t, err)
+}
+
+func TestOversizedStringsAndPackets(t *testing.T) {
+	hugeString := strings.Repeat("A", MaxStringLength+1)
+	_, err := encodeString(hugeString)
+	require.Error(t, err)
+
+	_, err = buildConnectPacket("id", hugeString, "pass", true, 60)
+	require.Error(t, err)
+
+	_, err = buildSubscribePacket(1, hugeString, 0)
+	require.Error(t, err)
+
+	_, err = buildPublishPacket(hugeString, []byte("ok"), 0, false, 0)
+	require.Error(t, err)
+
+	// Oversized packet reading
+	oversizedLen, err := encodeVarLength(MaxPacketSize + 100)
+	require.NoError(t, err)
+	buf := append([]byte{PacketPublish << 4}, oversizedLen...)
+	_, _, err = readPacket(bytes.NewReader(buf))
+	require.ErrorContains(t, err, "exceeds maximum allowed")
+}
+
+func TestPacketConnect(t *testing.T) {
+	pkt, err := buildConnectPacket("test-client", "user1", "pass1", true, 60)
+	require.NoError(t, err)
+	require.NotEmpty(t, pkt)
+	require.Equal(t, byte(PacketConnect<<4), pkt[0])
+
+	r := bytes.NewReader(pkt)
+	header, payload, err := readPacket(r)
+	require.NoError(t, err)
+	require.Equal(t, byte(PacketConnect<<4), header)
+
+	// Verify protocol name "MQTT"
+	protoLen := binary.BigEndian.Uint16(payload[0:2])
+	require.Equal(t, uint16(4), protoLen)
+	require.Equal(t, "MQTT", string(payload[2:6]))
+	require.Equal(t, byte(0x04), payload[6]) // Protocol level 4 (MQTT 3.1.1)
+
+	// CleanSession (0x02) | User (0x80) | Pass (0x40) = 0xC2
+	require.Equal(t, byte(0xC2), payload[7])
+}
+
+func TestPacketPublishAndParse(t *testing.T) {
+	pkt, err := buildPublishPacket("sensors/temperature", []byte("23.5C"), 0, true, 0)
+	require.NoError(t, err)
+	require.NotEmpty(t, pkt)
+
+	r := bytes.NewReader(pkt)
+	header, payload, err := readPacket(r)
+	require.NoError(t, err)
+
+	msg, err := parsePublish(header, payload)
+	require.NoError(t, err)
+	require.Equal(t, "sensors/temperature", msg.Topic)
+	require.Equal(t, "23.5C", msg.Payload)
+	require.Equal(t, 0, msg.QoS)
+	require.True(t, msg.Retain)
+}
+
+func TestPacketSubscribe(t *testing.T) {
+	pkt, err := buildSubscribePacket(42, "devices/#", 0)
+	require.NoError(t, err)
+	require.NotEmpty(t, pkt)
+	require.Equal(t, byte((PacketSubscribe<<4)|0x02), pkt[0])
+
+	r := bytes.NewReader(pkt)
+	header, payload, err := readPacket(r)
+	require.NoError(t, err)
+	require.Equal(t, byte((PacketSubscribe<<4)|0x02), header)
+
+	pid := binary.BigEndian.Uint16(payload[0:2])
+	require.Equal(t, uint16(42), pid)
+
+	subackPayload := []byte{0x00, 0x2A, 0x00} // PID 42, Success QoS 0
+	subackPid, granted, err := parseSuback(subackPayload)
+	require.NoError(t, err)
+	require.Equal(t, uint16(42), subackPid)
+	require.Equal(t, []byte{0x00}, granted)
+}
+
+func TestConnackReasons(t *testing.T) {
+	require.Equal(t, "connection accepted", ConnackReason(ConnAccepted))
+	require.Equal(t, "connection refused: bad user name or password", ConnackReason(ConnRefusedBadAuth))
+	require.Equal(t, "connection refused: not authorized", ConnackReason(ConnRefusedNotAuthorized))
+	require.Contains(t, ConnackReason(99), "connection refused: return code 99")
+}
+
+func TestRequestsHonourNetworkPolicy(t *testing.T) {
+	execID := "mqtt-deny"
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: execID, ExcludeTargets: []string{"203.0.113.50"}}))
+	t.Cleanup(func() { protocolstate.Close(execID) })
+	ctx := context.WithValue(context.Background(), "executionId", execID) //nolint:staticcheck
+
+	_, err := IsMQTT(ctx, "203.0.113.50", 1883)
+	require.Error(t, err)
+
+	client := &Client{}
+	_, err = client.Connect(ctx, "203.0.113.50", 1883, nil)
+	require.Error(t, err)
+}
+
+func startMockMQTTBroker(t *testing.T) (net.Listener, int) {
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	port := l.Addr().(*net.TCPAddr).Port
+
+	go func() {
+		for {
+			conn, err := l.Accept()
+			if err != nil {
+				return
+			}
+			go handleMockClient(conn)
+		}
+	}()
+
+	return l, port
+}
+
+func handleMockClient(conn net.Conn) {
+	defer func() { _ = conn.Close() }()
+
+	for {
+		header, payload, err := readPacket(conn)
+		if err != nil {
+			return
+		}
+
+		packetType := header >> 4
+		switch packetType {
+		case PacketConnect:
+			// Check if username is present (flags byte at offset 7)
+			if len(payload) >= 8 {
+				flags := payload[7]
+				if (flags & 0x80) != 0 {
+					// Check username
+					offset := 10 // after proto(6) + level(1) + flags(1) + keepalive(2)
+					if len(payload) >= offset+2 {
+						clientLen := int(binary.BigEndian.Uint16(payload[offset : offset+2]))
+						offset += 2 + clientLen
+						if len(payload) >= offset+2 {
+							userLen := int(binary.BigEndian.Uint16(payload[offset : offset+2]))
+							user := string(payload[offset+2 : offset+2+userLen])
+							if user == "baduser" {
+								// Send CONNACK Refused Bad Auth
+								_, _ = conn.Write([]byte{0x20, 0x02, 0x00, ConnRefusedBadAuth})
+								return
+							}
+						}
+					}
+				}
+			}
+			// Send CONNACK Accepted
+			_, _ = conn.Write([]byte{0x20, 0x02, 0x00, ConnAccepted})
+
+		case PacketSubscribe:
+			// Send SUBACK
+			pid := binary.BigEndian.Uint16(payload[0:2])
+			suback := []byte{0x90, 0x03, byte(pid >> 8), byte(pid & 0xFF), 0x00}
+			_, _ = conn.Write(suback)
+
+			// Publish test message
+			pubPkt, err := buildPublishPacket("nuclei/alert", []byte("vuln-detected"), 0, false, 0)
+			if err == nil {
+				_, _ = conn.Write(pubPkt)
+			}
+
+		case PacketPublish:
+			// QoS 0, no ack needed
+
+		case PacketPingreq:
+			// Send PINGRESP
+			_, _ = conn.Write([]byte{PacketPingresp << 4, 0x00})
+
+		case PacketDisconnect:
+			return
+		}
+	}
+}
+
+func TestMockBrokerInteractions(t *testing.T) {
+	execID := "mqtt-mock-test"
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: execID}))
+	t.Cleanup(func() { protocolstate.Close(execID) })
+	ctx := context.WithValue(context.Background(), "executionId", execID) //nolint:staticcheck
+
+	l, port := startMockMQTTBroker(t)
+	defer func() { _ = l.Close() }()
+
+	// 1. Test IsMQTT
+	isMQTT, err := IsMQTT(ctx, "127.0.0.1", port)
+	require.NoError(t, err)
+	require.True(t, isMQTT)
+
+	// 2. Test IsAnonymousAllowed
+	anonAllowed, err := IsAnonymousAllowed(ctx, "127.0.0.1", port)
+	require.NoError(t, err)
+	require.True(t, anonAllowed)
+
+	// 3. Test Client Connect Auth Failure
+	badClient := &Client{}
+	badRes, _ := badClient.ConnectAuth(ctx, "127.0.0.1", port, "baduser", "wrongpass")
+	require.False(t, badRes.Success)
+	require.Equal(t, int(ConnRefusedBadAuth), badRes.ReturnCode)
+
+	// 4. Test Client Connect Success with default CleanSession preservation
+	client := &Client{}
+	res, err := client.Connect(ctx, "127.0.0.1", port, &ConnectOptions{KeepAlive: 70000})
+	require.NoError(t, err)
+	require.True(t, res.Success)
+	require.Equal(t, int(ConnAccepted), res.ReturnCode)
+
+	// 5. Test Ping
+	alive, err := client.Ping(ctx)
+	require.NoError(t, err)
+	require.True(t, alive)
+
+	// 6. Test Subscribe and Receive Message
+	msgs, err := client.Subscribe(ctx, "nuclei/alert", 1)
+	require.NoError(t, err)
+	require.NotEmpty(t, msgs)
+	require.Equal(t, "nuclei/alert", msgs[0].Topic)
+	require.Equal(t, "vuln-detected", msgs[0].Payload)
+
+	// 7. Test Publish
+	pubOk, err := client.Publish(ctx, "nuclei/probe", "test payload")
+	require.NoError(t, err)
+	require.True(t, pubOk)
+
+	// 8. Test Close and Double Close
+	require.NoError(t, client.Close())
+	require.NoError(t, client.Close())
+}
+
+func TestPasswordWithoutUsername(t *testing.T) {
+	// MQTT 3.1.1 (MQTT-3.1.2-22): If Password flag is set, User Name flag MUST be set.
+	pkt, err := buildConnectPacket("token-client", "", "my-secret-token", true, 60)
+	require.NoError(t, err)
+
+	r := bytes.NewReader(pkt)
+	_, payload, err := readPacket(r)
+	require.NoError(t, err)
+
+	// CleanSession (0x02) | User (0x80) | Pass (0x40) = 0xC2
+	require.Equal(t, byte(0xC2), payload[7])
+
+	// The client ID comes right after the keep alive at payload[8:10], and the
+	// username length follows it.
+	clientIDLen := int(binary.BigEndian.Uint16(payload[10:12]))
+	off := 12 + clientIDLen
+
+	// Username length should be 0 (empty string)
+	userLen := binary.BigEndian.Uint16(payload[off : off+2])
+	require.Equal(t, uint16(0), userLen)
+	off += 2
+
+	// Password follows the username
+	passLen := binary.BigEndian.Uint16(payload[off : off+2])
+	require.Equal(t, uint16(len("my-secret-token")), passLen)
+	off += 2
+	require.Equal(t, "my-secret-token", string(payload[off:off+int(passLen)]))
+}
+
+// A window that closes in the middle of a PUBLISH must drop the connection.
+// Keeping it would let the next read start inside that packet.
+func TestSubscribePartialPacketClosesConnection(t *testing.T) {
+	execID := "mqtt-partial-subscribe"
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: execID}))
+	t.Cleanup(func() { protocolstate.Close(execID) })
+	ctx := context.WithValue(context.Background(), "executionId", execID) //nolint:staticcheck
+
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	defer func() { _ = l.Close() }()
+	port := l.Addr().(*net.TCPAddr).Port
+
+	go func() {
+		conn, err := l.Accept()
+		if err != nil {
+			return
+		}
+		defer func() { _ = conn.Close() }()
+		for {
+			header, payload, err := readPacket(conn)
+			if err != nil {
+				return
+			}
+			switch header >> 4 {
+			case PacketConnect:
+				_, _ = conn.Write([]byte{PacketConnack << 4, 0x02, 0x00, ConnAccepted})
+			case PacketSubscribe:
+				// SUBACK for the packet id, then a PUBLISH that promises 10 bytes
+				// and sends 5. The client's window closes in the middle of it.
+				_, _ = conn.Write([]byte{PacketSuback << 4, 0x03, payload[0], payload[1], 0x00})
+				_, _ = conn.Write([]byte{PacketPublish << 4, 0x0a, 0x00, 0x03, 'a', '/', 'b'})
+			}
+		}
+	}()
+
+	client := &Client{}
+	res, err := client.Connect(ctx, "127.0.0.1", port, nil)
+	require.NoError(t, err)
+	require.True(t, res.Success)
+
+	msgs, err := client.Subscribe(ctx, "a/b", 1)
+	require.NoError(t, err)
+	require.Empty(t, msgs)
+	require.Nil(t, client.conn, "a stream cut in the middle of a packet must not be reused")
+}
+
+func TestPingWithInFlightPublish(t *testing.T) {
+	execID := "mqtt-ping-inflight"
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: execID}))
+	t.Cleanup(func() { protocolstate.Close(execID) })
+	ctx := context.WithValue(context.Background(), "executionId", execID) //nolint:staticcheck
+
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	defer func() { _ = l.Close() }()
+
+	port := l.Addr().(*net.TCPAddr).Port
+
+	go func() {
+		conn, err := l.Accept()
+		if err != nil {
+			return
+		}
+		defer func() { _ = conn.Close() }()
+
+		for {
+			header, _, err := readPacket(conn)
+			if err != nil {
+				return
+			}
+			packetType := header >> 4
+			switch packetType {
+			case PacketConnect:
+				_, _ = conn.Write([]byte{0x20, 0x02, 0x00, ConnAccepted})
+			case PacketPingreq:
+				// Send a PUBLISH packet first before PINGRESP
+				pubPkt, _ := buildPublishPacket("sensors/temp", []byte("25.0"), 0, false, 0)
+				_, _ = conn.Write(pubPkt)
+				// Then send PINGRESP
+				_, _ = conn.Write([]byte{PacketPingresp << 4, 0x00})
+			case PacketDisconnect:
+				return
+			}
+		}
+	}()
+
+	client := &Client{}
+	res, err := client.Connect(ctx, "127.0.0.1", port, nil)
+	require.NoError(t, err)
+	require.True(t, res.Success)
+
+	// Ping should skip the in-flight PUBLISH and successfully receive PINGRESP
+	alive, err := client.Ping(ctx)
+	require.NoError(t, err)
+	require.True(t, alive)
+
+	_ = client.Close()
+}

pkg/js/libs/mqtt/packet.go

@@ -0,0 +1,339 @@
+package mqtt
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+)
+
+// Limits to prevent DoS and buffer overflows
+const (
+	MaxStringLength    = 65535
+	MaxRemainingLength = 268435455
+	MaxPacketSize      = 10 * 1024 * 1024 // 10MB limit on incoming packets
+)
+
+// MQTT 3.1.1 Control Packet Types
+const (
+	PacketConnect    byte = 1
+	PacketConnack    byte = 2
+	PacketPublish    byte = 3
+	PacketPuback     byte = 4
+	PacketPubrec     byte = 5
+	PacketPubrel     byte = 6
+	PacketPubcomp    byte = 7
+	PacketSubscribe  byte = 8
+	PacketSuback     byte = 9
+	PacketUnsub      byte = 10
+	PacketUnsuback   byte = 11
+	PacketPingreq    byte = 12
+	PacketPingresp   byte = 13
+	PacketDisconnect byte = 14
+)
+
+// CONNACK Return Codes (MQTT 3.1.1 table 3.1)
+const (
+	ConnAccepted                    byte = 0
+	ConnRefusedUnacceptableProtocol byte = 1
+	ConnRefusedIdentifierRejected   byte = 2
+	ConnRefusedServerUnavailable    byte = 3
+	ConnRefusedBadAuth              byte = 4
+	ConnRefusedNotAuthorized        byte = 5
+)
+
+// ConnackReason returns a human-readable description for CONNACK return codes.
+func ConnackReason(code byte) string {
+	switch code {
+	case ConnAccepted:
+		return "connection accepted"
+	case ConnRefusedUnacceptableProtocol:
+		return "connection refused: unacceptable protocol version"
+	case ConnRefusedIdentifierRejected:
+		return "connection refused: identifier rejected"
+	case ConnRefusedServerUnavailable:
+		return "connection refused: server unavailable"
+	case ConnRefusedBadAuth:
+		return "connection refused: bad user name or password"
+	case ConnRefusedNotAuthorized:
+		return "connection refused: not authorized"
+	default:
+		return fmt.Sprintf("connection refused: return code %d", code)
+	}
+}
+
+// encodeVarLength encodes a length integer as an MQTT variable byte integer.
+func encodeVarLength(length int) ([]byte, error) {
+	if length < 0 || length > MaxRemainingLength {
+		return nil, fmt.Errorf("remaining length %d exceeds MQTT max %d", length, MaxRemainingLength)
+	}
+	var out []byte
+	for {
+		encodedByte := byte(length % 128)
+		length /= 128
+		if length > 0 {
+			encodedByte |= 128
+		}
+		out = append(out, encodedByte)
+		if length == 0 {
+			break
+		}
+	}
+	return out, nil
+}
+
+// decodeVarLength decodes an MQTT variable byte integer from reader.
+func decodeVarLength(r io.Reader) (int, error) {
+	multiplier := 1
+	value := 0
+	buf := make([]byte, 1)
+	for i := 0; i < 4; i++ {
+		if _, err := io.ReadFull(r, buf); err != nil {
+			return 0, err
+		}
+		encodedByte := buf[0]
+		value += int(encodedByte&127) * multiplier
+		if multiplier > 128*128*128 {
+			return 0, errors.New("malformed remaining length")
+		}
+		multiplier *= 128
+		if encodedByte&128 == 0 {
+			return value, nil
+		}
+	}
+	return 0, errors.New("malformed remaining length")
+}
+
+// encodeString encodes a UTF-8 string with a 2-byte big-endian length prefix.
+func encodeString(s string) ([]byte, error) {
+	b := []byte(s)
+	if len(b) > MaxStringLength {
+		return nil, fmt.Errorf("string length %d exceeds MQTT max %d", len(b), MaxStringLength)
+	}
+	out := make([]byte, 2+len(b))
+	binary.BigEndian.PutUint16(out[0:2], uint16(len(b)))
+	copy(out[2:], b)
+	return out, nil
+}
+
+// buildConnectPacket constructs an MQTT 3.1.1 CONNECT packet.
+func buildConnectPacket(clientID, username, password string, cleanSession bool, keepAlive uint16) ([]byte, error) {
+	var varHeader []byte
+	protoName, err := encodeString("MQTT")
+	if err != nil {
+		return nil, err
+	}
+	varHeader = append(varHeader, protoName...)
+	varHeader = append(varHeader, 0x04) // Protocol Level: 4 (MQTT 3.1.1)
+
+	// Connect Flags
+	var flags byte
+	if cleanSession {
+		flags |= 0x02
+	}
+	// Per MQTT 3.1.1 spec (MQTT-3.1.2-22): If the User Name Flag is 0, the Password Flag MUST be 0.
+	// If a password is provided, the User Name Flag MUST be set (encoding an empty username if omitted).
+	hasUsername := username != "" || password != ""
+	if hasUsername {
+		flags |= 0x80
+	}
+	if password != "" {
+		flags |= 0x40
+	}
+	varHeader = append(varHeader, flags)
+
+	// Keep Alive (2 bytes big endian)
+	ka := make([]byte, 2)
+	binary.BigEndian.PutUint16(ka, keepAlive)
+	varHeader = append(varHeader, ka...)
+
+	// Payload
+	var payload []byte
+	cidBytes, err := encodeString(clientID)
+	if err != nil {
+		return nil, fmt.Errorf("invalid clientID: %w", err)
+	}
+	payload = append(payload, cidBytes...)
+
+	if hasUsername {
+		userBytes, err := encodeString(username)
+		if err != nil {
+			return nil, fmt.Errorf("invalid username: %w", err)
+		}
+		payload = append(payload, userBytes...)
+	}
+	if password != "" {
+		passBytes, err := encodeString(password)
+		if err != nil {
+			return nil, fmt.Errorf("invalid password: %w", err)
+		}
+		payload = append(payload, passBytes...)
+	}
+
+	remainingLength := len(varHeader) + len(payload)
+	lenBytes, err := encodeVarLength(remainingLength)
+	if err != nil {
+		return nil, err
+	}
+
+	var pkt []byte
+	pkt = append(pkt, PacketConnect<<4)
+	pkt = append(pkt, lenBytes...)
+	pkt = append(pkt, varHeader...)
+	pkt = append(pkt, payload...)
+	return pkt, nil
+}
+
+// buildSubscribePacket constructs an MQTT 3.1.1 SUBSCRIBE packet for a single topic.
+func buildSubscribePacket(packetID uint16, topic string, qos byte) ([]byte, error) {
+	var varHeader [2]byte
+	binary.BigEndian.PutUint16(varHeader[:], packetID)
+
+	topicBytes, err := encodeString(topic)
+	if err != nil {
+		return nil, fmt.Errorf("invalid topic: %w", err)
+	}
+
+	var payload []byte
+	payload = append(payload, topicBytes...)
+	payload = append(payload, qos&0x03)
+
+	remainingLength := len(varHeader) + len(payload)
+	lenBytes, err := encodeVarLength(remainingLength)
+	if err != nil {
+		return nil, err
+	}
+
+	var pkt []byte
+	// SUBSCRIBE fixed header flags must be 0010 (0x02)
+	pkt = append(pkt, (PacketSubscribe<<4)|0x02)
+	pkt = append(pkt, lenBytes...)
+	pkt = append(pkt, varHeader[:]...)
+	pkt = append(pkt, payload...)
+	return pkt, nil
+}
+
+// buildPublishPacket constructs an MQTT 3.1.1 PUBLISH packet.
+func buildPublishPacket(topic string, payload []byte, qos byte, retain bool, packetID uint16) ([]byte, error) {
+	headerByte := (PacketPublish << 4)
+	if retain {
+		headerByte |= 0x01
+	}
+	headerByte |= (qos & 0x03) << 1
+
+	topicBytes, err := encodeString(topic)
+	if err != nil {
+		return nil, fmt.Errorf("invalid topic: %w", err)
+	}
+
+	var varHeader []byte
+	varHeader = append(varHeader, topicBytes...)
+	if qos > 0 {
+		pid := make([]byte, 2)
+		binary.BigEndian.PutUint16(pid, packetID)
+		varHeader = append(varHeader, pid...)
+	}
+
+	remainingLength := len(varHeader) + len(payload)
+	lenBytes, err := encodeVarLength(remainingLength)
+	if err != nil {
+		return nil, err
+	}
+
+	var pkt []byte
+	pkt = append(pkt, headerByte)
+	pkt = append(pkt, lenBytes...)
+	pkt = append(pkt, varHeader...)
+	pkt = append(pkt, payload...)
+	return pkt, nil
+}
+
+// buildPingreqPacket constructs an MQTT PINGREQ packet.
+func buildPingreqPacket() []byte {
+	return []byte{PacketPingreq << 4, 0x00}
+}
+
+// buildDisconnectPacket constructs an MQTT DISCONNECT packet.
+func buildDisconnectPacket() []byte {
+	return []byte{PacketDisconnect << 4, 0x00}
+}
+
+// errBrokenStream means a read failed after part of a packet was consumed, or
+// a packet was refused, so the next read would start in the middle of a packet.
+// The connection must not be used again.
+var errBrokenStream = errors.New("MQTT stream is out of sync")
+
+// readPacket reads a full MQTT packet from reader, rejecting packets over MaxPacketSize.
+// Failures before the first byte is read are returned as they are. Failures after
+// it wrap errBrokenStream.
+func readPacket(r io.Reader) (headerByte byte, payload []byte, err error) {
+	var header [1]byte
+	if _, err := io.ReadFull(r, header[:]); err != nil {
+		return 0, nil, err
+	}
+	length, err := decodeVarLength(r)
+	if err != nil {
+		return 0, nil, fmt.Errorf("%w: %w", errBrokenStream, err)
+	}
+	if length > MaxPacketSize {
+		return 0, nil, fmt.Errorf("%w: MQTT packet length %d exceeds maximum allowed %d", errBrokenStream, length, MaxPacketSize)
+	}
+	buf := make([]byte, length)
+	if length > 0 {
+		if _, err := io.ReadFull(r, buf); err != nil {
+			return 0, nil, fmt.Errorf("%w: %w", errBrokenStream, err)
+		}
+	}
+	return header[0], buf, nil
+}
+
+// parseConnack decodes a CONNACK variable header.
+func parseConnack(payload []byte) (sessionPresent bool, returnCode byte, err error) {
+	if len(payload) < 2 {
+		return false, 0, errors.New("short CONNACK response")
+	}
+	sessionPresent = (payload[0] & 0x01) != 0
+	returnCode = payload[1]
+	return sessionPresent, returnCode, nil
+}
+
+// parseSuback decodes a SUBACK packet payload.
+func parseSuback(payload []byte) (packetID uint16, grantedQoS []byte, err error) {
+	if len(payload) < 3 {
+		return 0, nil, errors.New("short SUBACK response")
+	}
+	packetID = binary.BigEndian.Uint16(payload[0:2])
+	grantedQoS = payload[2:]
+	return packetID, grantedQoS, nil
+}
+
+// parsePublish decodes a PUBLISH packet.
+func parsePublish(headerByte byte, body []byte) (*Message, error) {
+	qos := (headerByte >> 1) & 0x03
+	retain := (headerByte & 0x01) != 0
+
+	if len(body) < 2 {
+		return nil, errors.New("short PUBLISH packet")
+	}
+	topicLen := int(binary.BigEndian.Uint16(body[0:2]))
+	if len(body) < 2+topicLen {
+		return nil, errors.New("short PUBLISH topic")
+	}
+	topic := string(body[2 : 2+topicLen])
+	offset := 2 + topicLen
+
+	if qos > 0 {
+		if len(body) < offset+2 {
+			return nil, errors.New("short PUBLISH packet ID")
+		}
+		offset += 2
+	}
+
+	payload := string(body[offset:])
+	return &Message{
+		Topic:   topic,
+		Payload: payload,
+		QoS:     int(qos),
+		Retain:  retain,
+	}, nil
+}

pkg/js/libs/mysql/mysql_fingerprint_client_test.go

@@ -2,7 +2,11 @@ package mysql
 
 import (
 	"context"
+	"fmt"
 	"net"
+	"os"
+	"path/filepath"
+	"runtime"
 	"strings"
 	"sync/atomic"
 	"testing"
@@ -169,6 +173,84 @@ func TestFingerprintMySQLDeniedByNetworkPolicy(t *testing.T) {
 	require.Contains(t, err.Error(), "127.0.0.1")
 }
 
+func TestConnectWithDSNDeniedByNetworkPolicy(t *testing.T) {
+	t.Parallel()
+
+	executionID := "mysql-dsn-deny-" + strings.NewReplacer("/", "-", " ", "-").Replace(t.Name())
+	require.NoError(t, protocolstate.Init(&types.Options{
+		ExecutionId:                executionID,
+		RestrictLocalNetworkAccess: true,
+	}))
+	t.Cleanup(func() { protocolstate.Close(executionID) })
+	ctx := context.WithValue(context.Background(), "executionId", executionID) //nolint:staticcheck
+
+	var accepted atomic.Int32
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = ln.Close() })
+	go func() {
+		for {
+			conn, err := ln.Accept()
+			if err != nil {
+				return
+			}
+			accepted.Add(1)
+			_ = conn.Close()
+		}
+	}()
+
+	port := ln.Addr().(*net.TCPAddr).Port
+	dsn := fmt.Sprintf("vuser:vpass@tcp(127.0.0.1:%d)/vdb", port)
+	ok, err := (&MySQLClient{}).ConnectWithDSN(ctx, dsn)
+	require.Error(t, err)
+	require.False(t, ok)
+	require.Contains(t, err.Error(), "127.0.0.1")
+	require.Zero(t, accepted.Load())
+}
+
+func TestConnectWithDSNUnixDeniedByNetworkPolicy(t *testing.T) {
+	t.Parallel()
+
+	executionID := "mysql-dsn-unix-deny-" + strings.NewReplacer("/", "-", " ", "-").Replace(t.Name())
+	require.NoError(t, protocolstate.Init(&types.Options{
+		ExecutionId:                executionID,
+		RestrictLocalNetworkAccess: true,
+	}))
+	t.Cleanup(func() { protocolstate.Close(executionID) })
+	ctx := context.WithValue(context.Background(), "executionId", executionID) //nolint:staticcheck
+
+	// t.TempDir can exceed the unix socket path limit on macOS, so use a short dir.
+	dir, err := os.MkdirTemp("", "nuclei-mysql")
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = os.RemoveAll(dir) })
+	sock := filepath.Join(dir, "lna.sock")
+	ln, err := net.Listen("unix", sock)
+	if err != nil && runtime.GOOS == "windows" {
+		t.Skipf("unix sockets not available: %v", err)
+	}
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = ln.Close() })
+
+	var accepted atomic.Int32
+	go func() {
+		for {
+			conn, err := ln.Accept()
+			if err != nil {
+				return
+			}
+			accepted.Add(1)
+			_ = conn.Close()
+		}
+	}()
+
+	dsn := fmt.Sprintf("vuser:vpass@unix(%s)/vdb", sock)
+	ok, err := (&MySQLClient{}).ConnectWithDSN(ctx, dsn)
+	require.Error(t, err)
+	require.False(t, ok)
+	require.Contains(t, err.Error(), "127.0.0.1")
+	require.Zero(t, accepted.Load())
+}
+
 func TestFingerprintMySQLVersionNeverEmptyOnHandshakeFixtures(t *testing.T) {
 	t.Parallel()
 

pkg/js/libs/mysql/mysql_private.go

@@ -76,24 +76,57 @@ func BuildDSN(opts MySQLOptions) (string, error) {
 	return dsn.String(), nil
 }
 
-// sandboxDSN enforces the local file access sandbox on a MySQL DSN. The
-// driver's allowAllFiles option lets a malicious server read any local file
-// off the host via LOAD DATA LOCAL INFILE, so it is only honored when -lfa is
-// enabled, mirroring the fs.ReadFile restriction.
-func sandboxDSN(dsn string, lfaAllowed bool) (string, error) {
+// sandboxDSN enforces local file and network policy on a MySQL DSN.
+// allowAllFiles is only honored when -lfa is enabled. tcp, tcp4 and tcp6
+// DSNs are rewritten to nucleitcp so the driver uses the fastdialer
+// registered in protocolstate. Unix sockets are treated as loopback for -lna.
+// Other networks are rejected.
+func sandboxDSN(executionId, dsn string) (string, error) {
 	cfg, err := mysql.ParseDSN(dsn)
 	if err != nil {
 		return "", err
 	}
-	if cfg.AllowAllFiles && !lfaAllowed {
+	opts := &types.Options{ExecutionId: executionId}
+	if cfg.AllowAllFiles && !protocolstate.IsLfaAllowed(opts) {
 		cfg.AllowAllFiles = false
 	}
+
+	netName := cfg.Net
+	if netName == "" {
+		netName = "tcp"
+	}
+	switch netName {
+	case "unix":
+		// IP-based policy never sees a socket path; gate on loopback like ldapi.
+		const unixPolicyHost = "127.0.0.1"
+		if !protocolstate.IsHostAllowed(executionId, unixPolicyHost) {
+			return "", protocolstate.ErrHostDenied.Msgf(unixPolicyHost)
+		}
+	case "tcp", "tcp4", "tcp6", "nucleitcp":
+		// Only nucleitcp has a registered dialer; the others would use the
+		// driver's plain net.Dialer and skip the dial-time policy check.
+		cfg.Net = "nucleitcp"
+		host := dsnPolicyHost(cfg.Addr)
+		if !protocolstate.IsHostAllowed(executionId, host) {
+			return "", protocolstate.ErrHostDenied.Msgf(host)
+		}
+	default:
+		return "", fmt.Errorf("unsupported mysql network %q", netName)
+	}
 	return cfg.FormatDSN(), nil
 }
 
+func dsnPolicyHost(addr string) string {
+	host, _, err := net.SplitHostPort(addr)
+	if err == nil && host != "" {
+		return host
+	}
+	return addr
+}
+
 // openDB opens a sandboxed MySQL connection from dsn.
 func openDB(executionId, dsn string) (*sql.DB, error) {
-	dsn, err := sandboxDSN(dsn, protocolstate.IsLfaAllowed(&types.Options{ExecutionId: executionId}))
+	dsn, err := sandboxDSN(executionId, dsn)
 	if err != nil {
 		return nil, err
 	}

pkg/js/libs/mysql/mysql_private_test.go

@@ -5,11 +5,14 @@ import (
 
 	"github.com/go-sql-driver/mysql"
 	"github.com/stretchr/testify/require"
+
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
 )
 
 func TestSandboxDSN(t *testing.T) {
 	t.Run("strips allowAllFiles when lfa disabled", func(t *testing.T) {
-		got, err := sandboxDSN("root:x@nucleitcp(127.0.0.1:3306)/?allowAllFiles=true", false)
+		got, err := sandboxDSN("", "root:x@nucleitcp(127.0.0.1:3306)/?allowAllFiles=true")
 		require.NoError(t, err)
 
 		cfg, err := mysql.ParseDSN(got)
@@ -18,7 +21,14 @@ func TestSandboxDSN(t *testing.T) {
 	})
 
 	t.Run("keeps allowAllFiles when lfa enabled", func(t *testing.T) {
-		got, err := sandboxDSN("root:x@nucleitcp(127.0.0.1:3306)/?allowAllFiles=true", true)
+		executionID := "mysql-lfa-" + t.Name()
+		require.NoError(t, protocolstate.Init(&types.Options{
+			ExecutionId:          executionID,
+			AllowLocalFileAccess: true,
+		}))
+		t.Cleanup(func() { protocolstate.Close(executionID) })
+
+		got, err := sandboxDSN(executionID, "root:x@nucleitcp(127.0.0.1:3306)/?allowAllFiles=true")
 		require.NoError(t, err)
 
 		cfg, err := mysql.ParseDSN(got)
@@ -27,7 +37,7 @@ func TestSandboxDSN(t *testing.T) {
 	})
 
 	t.Run("leaves dsn without allowAllFiles untouched", func(t *testing.T) {
-		got, err := sandboxDSN("root:x@nucleitcp(127.0.0.1:3306)/", false)
+		got, err := sandboxDSN("", "root:x@nucleitcp(127.0.0.1:3306)/")
 		require.NoError(t, err)
 
 		cfg, err := mysql.ParseDSN(got)
@@ -35,8 +45,80 @@ func TestSandboxDSN(t *testing.T) {
 		require.False(t, cfg.AllowAllFiles)
 	})
 
+	t.Run("rewrites tcp to nucleitcp", func(t *testing.T) {
+		got, err := sandboxDSN("", "root:x@tcp(acme.com:3306)/")
+		require.NoError(t, err)
+
+		cfg, err := mysql.ParseDSN(got)
+		require.NoError(t, err)
+		require.Equal(t, "nucleitcp", cfg.Net)
+		require.Equal(t, "acme.com:3306", cfg.Addr)
+	})
+
+	t.Run("rewrites tcp4 and tcp6 to nucleitcp", func(t *testing.T) {
+		for _, netName := range []string{"tcp4", "tcp6"} {
+			got, err := sandboxDSN("", "root:x@"+netName+"(acme.com:3306)/")
+			require.NoError(t, err)
+
+			cfg, err := mysql.ParseDSN(got)
+			require.NoError(t, err)
+			require.Equal(t, "nucleitcp", cfg.Net)
+			require.Equal(t, "acme.com:3306", cfg.Addr)
+		}
+	})
+
+	t.Run("rejects unsupported network", func(t *testing.T) {
+		_, err := sandboxDSN("", "root:x@udp(acme.com:3306)/")
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "udp")
+	})
+
 	t.Run("errors on invalid dsn", func(t *testing.T) {
-		_, err := sandboxDSN("::not-a-dsn::", false)
+		_, err := sandboxDSN("", "::not-a-dsn::")
 		require.Error(t, err)
 	})
+
+	t.Run("denies loopback tcp when lna enabled", func(t *testing.T) {
+		executionID := "mysql-lna-tcp-" + t.Name()
+		require.NoError(t, protocolstate.Init(&types.Options{
+			ExecutionId:                executionID,
+			RestrictLocalNetworkAccess: true,
+		}))
+		t.Cleanup(func() { protocolstate.Close(executionID) })
+
+		_, err := sandboxDSN(executionID, "vuser:vpass@tcp(127.0.0.1:3306)/vdb")
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "127.0.0.1")
+	})
+
+	t.Run("denies loopback variants when lna enabled", func(t *testing.T) {
+		executionID := "mysql-lna-variants-" + t.Name()
+		require.NoError(t, protocolstate.Init(&types.Options{
+			ExecutionId:                executionID,
+			RestrictLocalNetworkAccess: true,
+		}))
+		t.Cleanup(func() { protocolstate.Close(executionID) })
+
+		for _, dsn := range []string{
+			"vuser:vpass@tcp4(127.0.0.1:3306)/vdb",
+			"vuser:vpass@tcp6([::1]:3306)/vdb",
+			"vuser:vpass@tcp([::ffff:127.0.0.1]:3306)/vdb",
+		} {
+			_, err := sandboxDSN(executionID, dsn)
+			require.Error(t, err, dsn)
+		}
+	})
+
+	t.Run("denies unix socket when lna enabled", func(t *testing.T) {
+		executionID := "mysql-lna-unix-" + t.Name()
+		require.NoError(t, protocolstate.Init(&types.Options{
+			ExecutionId:                executionID,
+			RestrictLocalNetworkAccess: true,
+		}))
+		t.Cleanup(func() { protocolstate.Close(executionID) })
+
+		_, err := sandboxDSN(executionID, "vuser:vpass@unix(/tmp/nuclei-mysql-lna.sock)/vdb")
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "127.0.0.1")
+	})
 }

pkg/js/libs/net/net.go

@@ -6,6 +6,7 @@ import (
 	"crypto/tls"
 	"encoding/base64"
 	"encoding/hex"
+	"errors"
 	"fmt"
 	"net"
 	"net/http"
@@ -20,6 +21,8 @@ import (
 
 var (
 	defaultTimeout = time.Duration(5) * time.Second
+
+	errNoConnection = errors.New("no connection: open one with net.Open or net.OpenTLS")
 )
 
 // getTimeoutFromContext returns the configured TCP timeout or defaultTimeout.
@@ -271,12 +274,14 @@ type (
 	// const conn = net.Open('tcp', 'acme.com:80');
 	// ```
 	NetConn struct {
+		// conn is nil when no connection is open.
 		conn    net.Conn
 		timeout time.Duration
 	}
 )
 
 // Close closes the connection.
+// Close does nothing if no connection is open.
 // @example
 // ```javascript
 // const net = require('nuclei/net');
@@ -284,7 +289,13 @@ type (
 // conn.Close();
 // ```
 func (c *NetConn) Close() error {
+	if c.conn == nil {
+		return nil
+	}
+
 	err := c.conn.Close()
+	c.conn = nil
+
 	return err
 }
 
@@ -321,6 +332,10 @@ func (c *NetConn) unsetDeadLine() {
 // conn.SendArray(['hello', 'world']);
 // ```
 func (c *NetConn) SendArray(data []interface{}) error {
+	if c.conn == nil {
+		return errNoConnection
+	}
+
 	c.setDeadLine()
 	defer c.unsetDeadLine()
 	input := types.ToByteSlice(data)
@@ -342,6 +357,10 @@ func (c *NetConn) SendArray(data []interface{}) error {
 // conn.SendHex('68656c6c6f');
 // ```
 func (c *NetConn) SendHex(data string) error {
+	if c.conn == nil {
+		return errNoConnection
+	}
+
 	c.setDeadLine()
 	defer c.unsetDeadLine()
 	bin, err := hex.DecodeString(data)
@@ -366,6 +385,10 @@ func (c *NetConn) SendHex(data string) error {
 // conn.Send('hello');
 // ```
 func (c *NetConn) Send(data string) error {
+	if c.conn == nil {
+		return errNoConnection
+	}
+
 	c.setDeadLine()
 	defer c.unsetDeadLine()
 	bin := []byte(data)
@@ -389,6 +412,10 @@ func (c *NetConn) Send(data string) error {
 // const data = conn.RecvFull(1024);
 // ```
 func (c *NetConn) RecvFull(N int) ([]byte, error) {
+	if c.conn == nil {
+		return []byte{}, errNoConnection
+	}
+
 	c.setDeadLine()
 	defer c.unsetDeadLine()
 	if N == 0 {
@@ -414,6 +441,10 @@ func (c *NetConn) RecvFull(N int) ([]byte, error) {
 // log(`Received ${data.length} bytes from the server`)
 // ```
 func (c *NetConn) Recv(N int) ([]byte, error) {
+	if c.conn == nil {
+		return []byte{}, errNoConnection
+	}
+
 	c.setDeadLine()
 	defer c.unsetDeadLine()
 	if N == 0 {

pkg/js/libs/net/net_test.go

@@ -406,3 +406,41 @@ func (f *fakeConn) RemoteAddr() net.Addr             { return nil }
 func (f *fakeConn) SetDeadline(time.Time) error      { return nil }
 func (f *fakeConn) SetReadDeadline(time.Time) error  { return nil }
 func (f *fakeConn) SetWriteDeadline(time.Time) error { return nil }
+
+func TestNetConnWithoutConnection(t *testing.T) {
+	t.Parallel()
+
+	tests := map[string]func(t *testing.T) *NetConn{
+		"never opened": func(*testing.T) *NetConn { return new(NetConn) },
+		"already closed": func(t *testing.T) *NetConn {
+			t.Helper()
+
+			local, remote := net.Pipe()
+
+			t.Cleanup(func() { _ = remote.Close() })
+
+			conn := new(NetConn)
+			conn.conn = local
+			require.NoError(t, conn.Close())
+
+			return conn
+		},
+	}
+	for name, newConn := range tests {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			conn := newConn(t)
+			require.NoError(t, conn.Close())
+			require.ErrorContains(t, conn.Send("x"), "no connection")
+			require.ErrorContains(t, conn.SendHex("78"), "no connection")
+			require.ErrorContains(t, conn.SendArray([]any{120}), "no connection")
+
+			_, err := conn.Recv(1)
+			require.ErrorContains(t, err, "no connection")
+
+			_, err = conn.RecvFull(1)
+			require.ErrorContains(t, err, "no connection")
+		})
+	}
+}

pkg/js/libs/postgres/postgres.go

@@ -3,12 +3,12 @@ package postgres
 import (
 	"context"
 	"fmt"
-	"net"
-	"net/url"
+	"os"
+	"path/filepath"
+	"strconv"
 	"strings"
 	"time"
 
-	"github.com/go-pg/pg/v10"
 	"github.com/praetorian-inc/fingerprintx/pkg/plugins"
 	postgres "github.com/praetorian-inc/fingerprintx/pkg/plugins/services/postgresql"
 	utils "github.com/projectdiscovery/nuclei/v3/pkg/js/utils"
@@ -18,7 +18,7 @@ import (
 
 type (
 	// PGClient is a client for Postgres database.
-	// Internally client uses go-pg/pg driver.
+	// Internally client uses lib/pq driver.
 	// @example
 	// ```javascript
 	// const postgres = require('nuclei/postgres');
@@ -124,9 +124,7 @@ func executeQuery(ctx context.Context, executionId string, host string, port int
 		return nil, protocolstate.ErrHostDenied.Msgf(host)
 	}
 
-	target := net.JoinHostPort(host, fmt.Sprintf("%d", port))
-
-	connStr := buildPostgresConnURL(username, password, target, dbName, executionId)
+	connStr := buildPostgresDSN(host, port, username, password, dbName)
 	db, err := pgwrap.OpenDB(ctx, executionId, connStr)
 	if err != nil {
 		return nil, err
@@ -146,17 +144,30 @@ func executeQuery(ctx context.Context, executionId string, host string, port int
 	return resp, nil
 }
 
-func buildPostgresConnURL(username, password, target, dbName, executionId string) string {
-	values := url.Values{}
-	values.Set("sslmode", "disable")
-	values.Set("executionId", executionId)
-
-	return fmt.Sprintf("postgres://%s@%s/%s?%s",
-		url.UserPassword(username, password).String(),
-		target,
-		url.PathEscape(dbName),
-		values.Encode(),
-	)
+// buildPostgresDSN returns a lib/pq key=value connection string. user, password, dbname, service and passfile
+// are always set, also when empty: lib/pq fills unset values from the scanner's environment (PGUSER, PGPASSWORD,
+// PGDATABASE), a service file (PGSERVICE) and ~/.pgpass (PGPASSFILE), which sends the operator's credentials to the target.
+func buildPostgresDSN(host string, port int, username, password, dbName string) string {
+	quote := strings.NewReplacer(`\`, `\\`, `'`, `\'`)
+	params := []struct{ key, value string }{
+		{"host", host},
+		{"port", strconv.Itoa(port)},
+		{"user", username},
+		{"password", password},
+		{"dbname", dbName},
+		{"sslmode", "disable"},
+		{"connect_timeout", "10"},
+		{"service", ""},
+		{"options", ""},
+		{"application_name", ""},
+		// a path below a file never exists, so no password file is read
+		{"passfile", filepath.Join(os.DevNull, "pgpass")},
+	}
+	kvs := make([]string, 0, len(params))
+	for _, param := range params {
+		kvs = append(kvs, param.key+"='"+quote.Replace(param.value)+"'")
+	}
+	return strings.Join(kvs, " ")
 }
 
 // ConnectWithDB connects to Postgres database using given credentials and database name.
@@ -194,32 +205,20 @@ func connect(ctx context.Context, executionId string, host string, port int, use
 		return false, protocolstate.ErrHostDenied.Msgf(host)
 	}
 
-	target := net.JoinHostPort(host, fmt.Sprintf("%d", port))
-
-	execCtx, cancel := context.WithCancel(ctx)
+	execCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
 	defer cancel()
 
-	dialer := protocolstate.GetDialersWithId(executionId)
-	if dialer == nil {
-		return false, fmt.Errorf("dialers not initialized for %s", executionId)
+	// lib/pq with every credential set, as go-pg replaces an empty user, password or database
+	// with PGUSER, PGPASSWORD or PGDATABASE from the scanner's environment
+	db, err := pgwrap.OpenDB(execCtx, executionId, buildPostgresDSN(host, port, username, password, dbName))
+	if err != nil {
+		return false, err
 	}
-
-	db := pg.Connect(&pg.Options{
-		Addr:     target,
-		User:     username,
-		Password: password,
-		Database: dbName,
-		Dialer: func(dialCtx context.Context, network, addr string) (net.Conn, error) {
-			return dialer.Fastdialer.Dial(dialCtx, network, addr)
-		},
-		IdleCheckFrequency: -1,
-	}).WithTimeout(10 * time.Second)
-
 	defer func() {
 		_ = db.Close()
 	}()
 
-	_, err := db.ExecContext(execCtx, "select 1")
+	_, err = db.ExecContext(execCtx, "select 1")
 	if err != nil {
 		switch true {
 		case strings.Contains(err.Error(), "connect: connection refused"):

pkg/js/libs/postgres/postgres_test.go

@@ -1,74 +1,165 @@
 package postgres
 
 import (
-	"net/url"
+	"context"
+	"encoding/binary"
+	"io"
+	"net"
+	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 
 	"github.com/lib/pq"
+	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
+	"github.com/projectdiscovery/nuclei/v3/pkg/types"
+	"github.com/stretchr/testify/require"
 )
 
-func TestBuildPostgresConnectionURLDoesNotAllowDBNameQueryInjection(t *testing.T) {
-	dbName := "testdb?sslrootcert=/etc/passwd&sslmode=verify-ca&junk="
-	connStr := buildPostgresConnURL("postgres", "x", "127.0.0.1:5432", dbName, "exec-1")
+func TestBuildPostgresDSNEscapesDBName(t *testing.T) {
+	dbName := "testdb' sslrootcert='/etc/passwd' sslmode='verify-ca"
+	cfg, err := pq.NewConfig(buildPostgresDSN("127.0.0.1", 5432, "postgres", "x", dbName))
+	require.NoError(t, err)
 
-	u, err := url.Parse(connStr)
-	if err != nil {
-		t.Fatalf("parse connection URL: %v", err)
-	}
-
-	if got := strings.TrimPrefix(u.Path, "/"); got != dbName {
-		t.Fatalf("database name = %q, want %q", got, dbName)
-	}
-
-	values := u.Query()
-	if got := values.Get("sslmode"); got != "disable" {
-		t.Fatalf("sslmode = %q, want disable", got)
-	}
-	if got := values.Get("executionId"); got != "exec-1" {
-		t.Fatalf("executionId = %q, want exec-1", got)
-	}
-	deniedParams := []string{"sslrootcert", "sslcert", "sslkey", "service", "junk"}
-	for _, denied := range deniedParams {
-		if got := values.Get(denied); got != "" {
-			t.Fatalf("%s was injected with value %q", denied, got)
-		}
-	}
-
-	pqDSN, err := pq.ParseURL(connStr) //nolint:staticcheck // validates lib/pq URL parsing of the generated DSN.
-	if err != nil {
-		t.Fatalf("parse connection URL as lib/pq DSN: %v", err)
-	}
-	if !strings.Contains(pqDSN, "dbname='"+dbName+"'") {
-		t.Fatalf("lib/pq DSN = %q, want dbName preserved as dbname", pqDSN)
-	}
-	for _, denied := range deniedParams {
-		if strings.Contains(pqDSN, " "+denied+"=") {
-			t.Fatalf("%s was injected into lib/pq DSN %q", denied, pqDSN)
-		}
-	}
+	require.Equal(t, dbName, cfg.Database)
+	require.Equal(t, pq.SSLModeDisable, cfg.SSLMode)
+	require.Empty(t, cfg.SSLRootCert)
+	require.Empty(t, cfg.Runtime)
 }
 
-func TestBuildPostgresConnectionURLEscapesCredentials(t *testing.T) {
-	username := "user:[email protected]"
-	password := "pa:ss@word?x"
-	connStr := buildPostgresConnURL(username, password, "127.0.0.1:5432", "postgres", "exec-1")
+func TestBuildPostgresDSNEscapesCredentials(t *testing.T) {
+	username := `user:[email protected]' host='other`
+	password := `pa:ss@word?x\' sslmode='require`
+	cfg, err := pq.NewConfig(buildPostgresDSN("127.0.0.1", 5432, username, password, "postgres"))
+	require.NoError(t, err)
+
+	require.Equal(t, username, cfg.User)
+	require.Equal(t, password, cfg.Password)
+	require.Equal(t, "127.0.0.1", cfg.Host)
+	require.Equal(t, uint16(5432), cfg.Port)
+	require.Equal(t, "postgres", cfg.Database)
+	require.Equal(t, pq.SSLModeDisable, cfg.SSLMode)
+}
+
+// setOperatorPostgresEnv sets every source lib/pq and go-pg read credentials from
+func setOperatorPostgresEnv(t *testing.T) {
+	home := t.TempDir()
+	pgpass := filepath.Join(home, ".pgpass")
+	require.NoError(t, os.WriteFile(pgpass, []byte("*:*:*:*:OPERATOR-PGPASS-SECRET\n"), 0600))
+	serviceFile := filepath.Join(home, ".pg_service.conf")
+	require.NoError(t, os.WriteFile(serviceFile, []byte("[operator]\npassword=OPERATOR-SERVICE-SECRET\n"), 0600))
+
+	t.Setenv("HOME", home)
+	t.Setenv("PGPASSFILE", pgpass)
+	t.Setenv("PGSERVICEFILE", serviceFile)
+	t.Setenv("PGSERVICE", "operator")
+	t.Setenv("PGPASSWORD", "OPERATOR-ENV-PGPASSWORD")
+	t.Setenv("PGUSER", "operator-user")
+	t.Setenv("PGDATABASE", "operator-db")
+	t.Setenv("PGOPTIONS", "-c search_path=operator")
+	t.Setenv("PGAPPNAME", "operator-app")
+}
+
+func TestBuildPostgresDSNIgnoresOperatorEnvironment(t *testing.T) {
+	setOperatorPostgresEnv(t)
+
+	cfg, err := pq.NewConfig(buildPostgresDSN("127.0.0.1", 5432, "", "", ""))
+	require.NoError(t, err)
+	require.Empty(t, cfg.User)
+	require.Empty(t, cfg.Password)
+	require.Empty(t, cfg.Database)
+	require.Empty(t, cfg.Service)
+	require.Empty(t, cfg.Options)
+	require.Empty(t, cfg.ApplicationName)
+}
+
+type startup struct {
+	user, database, password string
+}
+
+// fakePostgres asks every client for a cleartext password, records it and rejects the login
+func fakePostgres(t *testing.T) (int, <-chan startup) {
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = listener.Close() })
+
+	logins := make(chan startup, 16)
+	go func() {
+		for {
+			conn, err := listener.Accept()
+			if err != nil {
+				return
+			}
+			go func(conn net.Conn) {
+				defer func() { _ = conn.Close() }()
+				readMessage := func(typed bool) []byte {
+					header := make([]byte, 4)
+					if typed {
+						header = make([]byte, 5)
+					}
+					if _, err := io.ReadFull(conn, header); err != nil {
+						return nil
+					}
+					body := make([]byte, binary.BigEndian.Uint32(header[len(header)-4:])-4)
+					if _, err := io.ReadFull(conn, body); err != nil {
+						return nil
+					}
+					return body
+				}
+				params := readMessage(false)
+				if len(params) < 4 {
+					return
+				}
+				fields := strings.Split(string(params[4:]), "\x00")
+				var login startup
+				for i := 0; i+1 < len(fields); i += 2 {
+					switch fields[i] {
+					case "user":
+						login.user = fields[i+1]
+					case "database":
+						login.database = fields[i+1]
+					}
+				}
+				// AuthenticationCleartextPassword
+				if _, err := conn.Write([]byte{'R', 0, 0, 0, 8, 0, 0, 0, 3}); err != nil {
+					return
+				}
+				password := readMessage(true)
+				login.password = strings.TrimSuffix(string(password), "\x00")
+				logins <- login
+				errorBody := "SFATAL\x00C28P01\x00Mpassword authentication failed\x00\x00"
+				header := []byte{'E', 0, 0, 0, 0}
+				binary.BigEndian.PutUint32(header[1:], uint32(len(errorBody)+4))
+				_, _ = conn.Write(append(header, errorBody...))
+			}(conn)
+		}
+	}()
+	return listener.Addr().(*net.TCPAddr).Port, logins
+}
+
+func TestPostgresEmptyCredentialsAreNotFilledFromEnvironment(t *testing.T) {
+	setOperatorPostgresEnv(t)
+
+	executionID := t.Name()
+	require.NoError(t, protocolstate.Init(&types.Options{ExecutionId: executionID}))
+	t.Cleanup(func() { protocolstate.Close(executionID) })
+
+	port, logins := fakePostgres(t)
+	ctx := context.Background()
+
+	_, err := executeQuery(ctx, executionID, "127.0.0.1", port, "postgres", "", "postgres", "select 1")
+	require.Error(t, err)
+	require.Equal(t, startup{user: "postgres", database: "postgres"}, <-logins)
+
+	connected, err := connect(ctx, executionID, "127.0.0.1", port, "postgres", "", "postgres")
+	require.NoError(t, err)
+	require.False(t, connected)
+	require.Equal(t, startup{user: "postgres", database: "postgres"}, <-logins)
+
+	_, _ = connect(ctx, executionID, "127.0.0.1", port, "", "", "")
+	require.Equal(t, startup{}, <-logins)
+
+	_, _ = executeQuery(ctx, executionID, "127.0.0.1", port, "admin", "secret", "db", "select 1")
+	require.Equal(t, startup{user: "admin", database: "db", password: "secret"}, <-logins)
 
-	u, err := url.Parse(connStr)
-	if err != nil {
-		t.Fatalf("parse connection URL: %v", err)
-	}
-
-	if got := u.User.Username(); got != username {
-		t.Fatalf("username = %q, want %q", got, username)
-	}
-	if got, _ := u.User.Password(); got != password {
-		t.Fatalf("password = %q, want %q", got, password)
-	}
-	if got := u.Host; got != "127.0.0.1:5432" {
-		t.Fatalf("host = %q, want 127.0.0.1:5432", got)
-	}
-	if got := strings.TrimPrefix(u.Path, "/"); got != "postgres" {
-		t.Fatalf("database name = %q, want postgres", got)
-	}
 }

pkg/js/libs/redis/memo.redis.go

@@ -3,7 +3,6 @@ package redis
 
 import (
 	"context"
-
 	"errors"
 
 	"fmt"

pkg/js/libs/redis/redis.go

@@ -3,13 +3,12 @@ package redis
 import (
 	"bytes"
 	"context"
-	"errors"
 	"fmt"
-	"io"
 	"net"
 	"strconv"
 	"time"
 
+	"github.com/projectdiscovery/gologger"
 	"github.com/projectdiscovery/nuclei/v3/pkg/protocols/common/protocolstate"
 	"github.com/redis/go-redis/v9"
 
@@ -269,9 +268,10 @@ var errReadLimit = fmt.Errorf("redis: reply exceeds %d bytes", maxReadBytes)
 // maxReadBytes.
 func newClient(addr, password string) *redis.Client {
 	opts := &redis.Options{
-		Addr:     addr,
-		Password: password,
-		DB:       0,
+		Addr:          addr,
+		Password:      password,
+		DB:            0,
+		DialerRetries: dialAttempts,
 	}
 	dial := redis.NewDialer(opts)
 	opts.Dialer = func(ctx context.Context, network, addr string) (net.Conn, error) {
@@ -285,138 +285,134 @@ func newClient(addr, password string) *redis.Client {
 	return redis.NewClient(opts)
 }
 
-// limitedConn fails a read once remaining is spent, and withholds a RESP length line whose
-// declared size is over the cap so go-redis never allocates it.
+// maxHeaderLen fits a type byte, any int64, and "\r". Redis never sends a longer length header.
+const maxHeaderLen = 32
+
+// limitedConn fails a read once remaining is spent, and ends a read before the "\n" of a RESP
+// length header whose declared size is over the cap, so go-redis never gets the line to allocate
+// from.
+//
+// It follows the reply's framing as the bytes pass: a bulk payload is skipped by its declared
+// length, so only header lines are checked. A payload line such as "*abc" is data.
 type limitedConn struct {
 	net.Conn
 	remaining int64
-	pending   []byte
-	partial   []byte
-	err       error
-	scratch   [32 << 10]byte
+	// payload is how many bytes of the current bulk payload, "\r\n" included, are still to come.
+	payload int64
+	// header is the start of the current header line, without its "\n".
+	header   []byte
+	overlong bool
+	err      error
 }
 
 func (c *limitedConn) Read(b []byte) (int, error) {
-	if len(b) == 0 {
+	if c.err != nil {
+		return 0, c.err
+	}
+	if c.remaining <= 0 {
+		return 0, errReadLimit
+	}
+	if int64(len(b)) > c.remaining {
+		b = b[:c.remaining]
+	}
+	n, err := c.Conn.Read(b)
+	c.remaining -= int64(n)
+	// Errors from the connection, deadlines included, are returned as they come and not kept: a
+	// read deadline belongs to one call. go-redis peeks for push notifications with a few
+	// microseconds of deadline, and keeping that timeout would fail the command that follows.
+	kept, scanErr := c.scan(b[:n])
+	if scanErr == nil {
+		return n, err
+	}
+	c.err = scanErr
+	if kept == 0 {
+		return 0, scanErr
+	}
+	return kept, nil
+}
+
+// scan follows the RESP framing of p and returns how many of its bytes may be returned.
+func (c *limitedConn) scan(p []byte) (int, error) {
+	for i := 0; i < len(p); {
+		if c.payload > 0 {
+			skip := min(c.payload, int64(len(p)-i))
+			c.payload -= skip
+			i += int(skip)
+			continue
+		}
+		end := bytes.IndexByte(p[i:], '\n')
+		if end < 0 {
+			c.keepHeader(p[i:])
+			return len(p), nil
+		}
+		c.keepHeader(p[i : i+end])
+		payload, err := declaredPayload(c.header, c.overlong)
+		c.header, c.overlong = c.header[:0], false
+		if err != nil {
+			return i + end, err
+		}
+		c.payload = payload
+		i += end + 1
+	}
+	return len(p), nil
+}
+
+func (c *limitedConn) keepHeader(p []byte) {
+	if room := maxHeaderLen - len(c.header); len(p) > room {
+		p = p[:room]
+		c.overlong = true
+	}
+	c.header = append(c.header, p...)
+}
+
+// declaredPayload returns how many payload bytes, "\r\n" included, follow a RESP header line
+// given without its "\n". It returns errReadLimit when go-redis would allocate more than the cap
+// from the line: the declared byte length for bulk strings, one interface per declared element
+// for arrays, sets, maps, attributes, and pushes.
+func declaredPayload(line []byte, overlong bool) (int64, error) {
+	if len(line) == 0 {
 		return 0, nil
 	}
-	if len(c.pending) == 0 {
-		if err := c.fill(); err != nil {
-			return 0, err
-		}
-	}
-	n := copy(b, c.pending)
-	c.pending = c.pending[n:]
-	return n, nil
-}
-
-func (c *limitedConn) fill() error {
-	if len(c.pending) > 0 {
-		return nil
-	}
-	if c.err != nil {
-		return c.err
-	}
-	for len(c.pending) == 0 {
-		if c.remaining <= 0 {
-			c.err = errReadLimit
-			return c.err
-		}
-		want := int64(len(c.scratch))
-		if want > c.remaining {
-			want = c.remaining
-		}
-		n, err := c.Conn.Read(c.scratch[:want])
-		if n > 0 {
-			c.remaining -= int64(n)
-			if aerr := c.accept(c.scratch[:n]); aerr != nil {
-				c.err = aerr
-				if len(c.pending) > 0 {
-					return nil
-				}
-				return aerr
-			}
-		}
-		if err != nil {
-			// A read deadline belongs to one call. go-redis peeks for push notifications
-			// with a few microseconds of deadline, and on Windows that peek always runs.
-			// Keeping the timeout fails the command that follows.
-			if timeoutErr(err) {
-				if len(c.pending) > 0 {
-					return nil
-				}
-				return err
-			}
-			c.err = err
-			if len(c.pending) > 0 {
-				return nil
-			}
-			return err
-		}
-		if n == 0 {
-			c.err = io.ErrUnexpectedEOF
-			return c.err
-		}
-	}
-	return nil
-}
-
-func (c *limitedConn) accept(p []byte) error {
-	c.partial = append(c.partial, p...)
-	for {
-		i := bytes.IndexByte(c.partial, '\n')
-		if i < 0 {
-			if int64(len(c.partial)) > maxReadBytes {
-				c.partial = nil
-				return errReadLimit
-			}
-			return nil
-		}
-		line := c.partial[:i+1]
-		if lengthTooLarge(line) {
-			c.partial = nil
-			return errReadLimit
-		}
-		copied := make([]byte, len(line))
-		copy(copied, line)
-		c.pending = append(c.pending, copied...)
-		rest := make([]byte, len(c.partial)-(i+1))
-		copy(rest, c.partial[i+1:])
-		c.partial = rest
-	}
-}
-
-// lengthTooLarge reports whether line is a RESP length header go-redis would allocate from.
-// Bulk strings allocate the declared byte length. Arrays, sets, maps, attributes, and pushes
-// allocate one interface per declared element.
-func lengthTooLarge(line []byte) bool {
-	if len(line) < 3 {
-		return false
-	}
 	var limit int64
+	bulk := false
 	switch line[0] {
 	case '$', '=', '!':
-		limit = maxReadBytes
+		limit, bulk = maxReadBytes, true
 	case '*', '~', '>', '%', '|':
 		limit = maxAggregate
 	default:
-		return false
+		return 0, nil
 	}
-	body := line[1 : len(line)-1]
-	if len(body) > 0 && body[len(body)-1] == '\r' {
-		body = body[:len(body)-1]
+	if overlong {
+		return 0, errReadLimit
 	}
+	body := bytes.TrimSuffix(line[1:], []byte("\r"))
 	if len(body) == 0 || body[0] == '-' {
-		return false
+		return 0, nil
 	}
 	n, err := strconv.ParseInt(string(body), 10, 64)
-	if err != nil {
-		return true
+	if err != nil || n > limit {
+		return 0, errReadLimit
 	}
-	return n > limit
+	if !bulk {
+		return 0, nil
+	}
+	return n + 2, nil
 }
 
-func timeoutErr(err error) bool {
-	var netErr net.Error
-	return errors.As(err, &netErr) && netErr.Timeout()
+// dialAttempts replaces go-redis's default of 5. The extra attempts run in a goroutine that
+// ignores the caller's context, so they kept dialing a filtered port for ~25s after the
+// template had given up on it.
+const dialAttempts = 1
+
+func init() {
+	redis.SetLogger(warningLogger{})
+}
+
+// warningLogger hands go-redis's logs to gologger as warnings. Its default logger writes them
+// straight to stderr, where a failed dial against the scanned host reads as an error.
+type warningLogger struct{}
+
+func (warningLogger) Printf(_ context.Context, format string, v ...interface{}) {
+	gologger.Warning().Msgf(format, v...)
 }

pkg/js/libs/redis/redis_dial_test.go

@@ -0,0 +1,81 @@
+package redis
+
+import (
+	"context"
+	"net"
+	"runtime"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/projectdiscovery/gologger"
+	"github.com/projectdiscovery/gologger/levels"
+	"github.com/projectdiscovery/gologger/writer"
+	"github.com/stretchr/testify/require"
+)
+
+// go-redis retries a failed dial 4 times, 100ms apart, on each of a command's 4 attempts: a closed
+// port took at least 1.6s to fail.
+func TestGetServerInfoFailsFastOnAClosedPort(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("windows takes about a second to report a refused localhost dial")
+	}
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	addr, ok := listener.Addr().(*net.TCPAddr)
+	require.True(t, ok)
+	require.NoError(t, listener.Close())
+
+	start := time.Now()
+	_, err = getServerInfo(context.Background(), "redis-closed-port", "127.0.0.1", addr.Port)
+	require.Error(t, err)
+	require.Less(t, time.Since(start), time.Second)
+}
+
+// go-redis's default logger wrote each failed dial straight to stderr, past nuclei's logger and
+// its level.
+func TestGoRedisLogsAreGologgerWarnings(t *testing.T) {
+	logs := &recordingWriter{}
+	gologger.DefaultLogger.SetWriter(logs)
+	gologger.DefaultLogger.SetMaxLevel(levels.LevelWarning)
+	t.Cleanup(func() {
+		// gologger's own defaults: it has no getter to save the previous ones.
+		gologger.DefaultLogger.SetWriter(writer.NewCLI())
+		gologger.DefaultLogger.SetMaxLevel(levels.LevelInfo)
+	})
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	addr, ok := listener.Addr().(*net.TCPAddr)
+	require.True(t, ok)
+	require.NoError(t, listener.Close())
+
+	_, err = getServerInfo(context.Background(), "redis-log-level", "127.0.0.1", addr.Port)
+	require.Error(t, err)
+
+	warnings := logs.at(levels.LevelWarning)
+	require.NotEmpty(t, warnings)
+	require.Contains(t, warnings[0], "failed to dial")
+}
+
+type recordingWriter struct {
+	mu    sync.Mutex
+	lines map[levels.Level][]string
+}
+
+func (w *recordingWriter) Write(data []byte, level levels.Level) {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	if w.lines == nil {
+		w.lines = make(map[levels.Level][]string)
+	}
+	w.lines[level] = append(w.lines[level], strings.TrimSpace(string(data)))
+}
+
+func (w *recordingWriter) at(level levels.Level) []string {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+	return w.lines[level]
+}