diff --git a/packages/server/src/enterprise/controllers/organization.controller.ts b/packages/server/src/enterprise/controllers/organization.controller.ts
index b7ca0a6d7..f2af58fd8 100644
--- a/packages/server/src/enterprise/controllers/organization.controller.ts
+++ b/packages/server/src/enterprise/controllers/organization.controller.ts
@@ -7,6 +7,7 @@ import { Organization } from '../database/entities/organization.entity'
 import { GeneralErrorMessage } from '../../utils/constants'
 import { OrganizationUserService } from '../services/organization-user.service'
 import { getCurrentUsage } from '../../utils/quotaUsage'
+import { assertStripeIdMatchesSession } from '../utils/tenantRequestGuards'
 
 export class OrganizationController {
     public async create(req: Request, res: Response, next: NextFunction) {
@@ -62,6 +63,7 @@ export class OrganizationController {
             if (!subscriptionId) {
                 return res.status(400).json({ error: 'Subscription ID is required' })
             }
+            assertStripeIdMatchesSession(subscriptionId as string, req.user?.activeOrganizationSubscriptionId)
             const organizationUserservice = new OrganizationUserService()
             const totalOrgUsers = await organizationUserservice.readOrgUsersCountByOrgId(req.user?.activeOrganizationId as string)
 
@@ -80,6 +82,7 @@ export class OrganizationController {
             if (!customerId) {
                 return res.status(400).json({ error: 'Customer ID is required' })
             }
+            assertStripeIdMatchesSession(customerId as string, req.user?.activeOrganizationCustomerId)
             const identityManager = getRunningExpressApp().identityManager
             const result = await identityManager.getCustomerWithDefaultSource(customerId as string)
 
@@ -93,11 +96,12 @@ export class OrganizationController {
         try {
             const { subscriptionId, quantity } = req.query
             if (!subscriptionId) {
-                return res.status(400).json({ error: 'Customer ID is required' })
+                return res.status(400).json({ error: 'Subscription ID is required' })
             }
             if (quantity === undefined) {
                 return res.status(400).json({ error: 'Quantity is required' })
             }
+            assertStripeIdMatchesSession(subscriptionId as string, req.user?.activeOrganizationSubscriptionId)
             const identityManager = getRunningExpressApp().identityManager
             const result = await identityManager.getAdditionalSeatsProration(subscriptionId as string, parseInt(quantity as string))
 
@@ -116,6 +120,7 @@ export class OrganizationController {
             if (!newPlanId) {
                 return res.status(400).json({ error: 'New plan ID is required' })
             }
+            assertStripeIdMatchesSession(subscriptionId as string, req.user?.activeOrganizationSubscriptionId)
             const identityManager = getRunningExpressApp().identityManager
             const result = await identityManager.getPlanProration(subscriptionId as string, newPlanId as string)
 
@@ -137,6 +142,7 @@ export class OrganizationController {
             if (!prorationDate) {
                 return res.status(400).json({ error: 'Proration date is required' })
             }
+            assertStripeIdMatchesSession(subscriptionId, req.user?.activeOrganizationSubscriptionId)
             const identityManager = getRunningExpressApp().identityManager
             const result = await identityManager.updateAdditionalSeats(subscriptionId, quantity, prorationDate)
 
@@ -158,6 +164,7 @@ export class OrganizationController {
             if (!prorationDate) {
                 return res.status(400).json({ error: 'Proration date is required' })
             }
+            assertStripeIdMatchesSession(subscriptionId, req.user?.activeOrganizationSubscriptionId)
             const identityManager = getRunningExpressApp().identityManager
             const result = await identityManager.updateSubscriptionPlan(req, subscriptionId, newPlanId, prorationDate)
 
diff --git a/packages/server/src/enterprise/utils/tenantRequestGuards.ts b/packages/server/src/enterprise/utils/tenantRequestGuards.ts
index 54ad720df..e76132678 100644
--- a/packages/server/src/enterprise/utils/tenantRequestGuards.ts
+++ b/packages/server/src/enterprise/utils/tenantRequestGuards.ts
@@ -65,6 +65,12 @@ export async function assertWorkspaceIdAccessibleToUser(
     throw new InternalFlowiseError(StatusCodes.FORBIDDEN, GeneralErrorMessage.FORBIDDEN)
 }
 
+export function assertStripeIdMatchesSession(requestedId: string, activeId: string | undefined): void {
+    if (!activeId || requestedId !== activeId) {
+        throw new InternalFlowiseError(StatusCodes.FORBIDDEN, GeneralErrorMessage.FORBIDDEN)
+    }
+}
+
 export function userMayManageOrgUsers(user: LoggedInUser): boolean {
     return user.isOrganizationAdmin === true || (user.permissions?.includes('users:manage') ?? false)
 }