n8n: GraphQL Node Bypasses "Allowed HTTP Request Domains" Restriction

Impact The GraphQL node did not enforce the "Allowed HTTP Request Domains" restriction on HTTP-based credentials such as Header Auth, Basic Auth, Query Auth, and OAuth, unlike the HTTP Request node. An authenticated user able to create or edit workflows could therefore point the node's endpoint a...

Incorrect Authorization

Overview @n8n/n8n-nodes-langchain is a Affected versions of this package are vulnerable to Incorrect Authorization in the OAuth 2.1 authorization. An attacker can gain unauthorized access to another user's workflow and execute it with the owner's credentials by registering an OAuth client and...

GHSA-Q5XF-XHWF-CWQF n8n: Member-Level Users Can Execute Other Users' MCP Server Trigger Workflows via Missing OAuth Authorization Check

Impact The OAuth 2.1 consent and token-issuance flow introduced in n8n 2.27.0 does not verify that the authenticated user has access to the workflow referenced as the OAuth resource. A member-level user can register an OAuth client, self-approve consent for another user's n8n OAuth2-protected MCP...

EUVD-2026-42268

n8n: Improper Authorization Allows Authenticated Users to Assign Workflows to Folders in Other Projects...

GHSA-2XGM-WC4G-5JVG n8n: Improper Authorization Allows Authenticated Users to Assign Workflows to Folders in Other Projects

Impact An authenticated user with permission to create workflows in one project could bypass project/folder authorization boundaries during workflow creation. By supplying a crafted request payload, the user could associate a newly created workflow with a folder belonging to a different project...

NPM: n8n: External Secrets Accessible via Workflow Expressions Outside Credentials

NPM: n8n: External Secrets Accessible via Workflow Expressions Outside Credentials vulnerability discovered by ? in WordPress Npm n8n versions 2.27.4...

GHSA-2434-3X6Q-8R99 n8n: External Secrets Accessible via Workflow Expressions Outside Credentials

Impact External secrets were incorrectly resolved in workflow node expressions, where they are not intended to be available. An authenticated user with project editor access could read the plaintext value of external secrets by referencing them in a node expression, without needing explicit secre...

n8n: External Secrets Accessible via Workflow Expressions Outside Credentials

Impact External secrets were incorrectly resolved in workflow node expressions, where they are not intended to be available. An authenticated user with project editor access could read the plaintext value of external secrets by referencing them in a node expression, without needing explicit secre...

EUVD-2026-44635

n8n: External Secrets Permission Bypass via Expression Parser Mismatch...

Prototype Pollution

Overview n8n-nodes-base is a Base nodes of n8n Affected versions of this package are vulnerable to Prototype Pollution via the Edit Fields Set process when output fields are assigned using dot-notation path setters without restricting field names. An attacker can corrupt a shared global in the ma...

Incorrect Authorization

Overview @n8n/n8n-nodes-langchain is a Affected versions of this package are vulnerable to Incorrect Authorization via the Execute Sub-workflow. An attacker can access unauthorized credentials by referencing credential IDs within inline workflow JSON, bypassing intended access controls. Note: Thi...

GHSA-CJ9H-QX8G-PQ2G n8n: Shared-Workflow Editor Can Exfiltrate Credentials via Inline Sub-Workflow JSON

Impact n8n's credential-access checks validated only a node's top-level credentials, not credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with editor access to a shared workflow could reference a credential they were not permitted to use inside that inli...

n8n: Shared-Workflow Editor Can Exfiltrate Credentials via Inline Sub-Workflow JSON

Impact n8n's credential-access checks validated only a node's top-level credentials, not credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with editor access to a shared workflow could reference a credential they were not permitted to use inside that inli...

NPM: n8n: Shared-Workflow Editor Can Exfiltrate Credentials via Inline Sub-Workflow JSON

NPM: n8n: Shared-Workflow Editor Can Exfiltrate Credentials via Inline Sub-Workflow JSON vulnerability discovered by ? in WordPress Npm n8n versions 1.123.67...

Arbitrary Code Injection

Overview n8n-workflow is a Workflow base code of n8n Affected versions of this package are vulnerable to Arbitrary Code Injection via crafted expressions using arrow functions in the expression. An attacker can execute arbitrary system commands by bypassing the intended sandbox restrictions. Note...

@n8n/agents (0.17.0), @n8n/ai-node-sdk (0.22.0) +25 more potentially affected by unknown CVE via n8n-workflow (2.32.0)

n8n-workflow NPM version 2.32.0 is affected by a known vulnerability. The following packages have a transitive dependency on n8n-workflow and may be impacted: - @n8n/agents 0.17.0 - @n8n/ai-node-sdk 0.22.0 - @n8n/ai-utilities 0.25.0 - @n8n/ai-workflow-builder 1.32.0 - @n8n/api-types 1.32.0 -...

@0xlimao/n8n-nodes-ethereum (>=1.0.0, <=1.0.1), @a700/n8n-nodes-agent700 (>=1.0.5, <=1.0.7) +2137 more potentially affected by unknown CVE via n8n-workflow (>=2.0.0-rc.0, <=2.31.2)

n8n-workflow NPM version =2.0.0-rc.0, =1.0.0, =1.0.5, =0.0.1, =1.0.0, =0.0.1, =0.0.1, =1.0.0, =0.2.2, =0.3.6, =0.1.0, =1.0.0, =1.3.1 and more Source cves: unknown CVE Source advisory: SNYK:JS-N8NWORKFLOW-18323974...

Server-side Request Forgery (SSRF)

Overview n8n-nodes-base is a Base nodes of n8n Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via improper handling of message fields in the Send Email node. An attacker can access arbitrary files or initiate unauthorized network requests by supplying crafted...

GHSA-VHF8-CG2H-CG3P n8n: SSRF Protection Bypass via MCP Client Node

Impact On an n8n instance with SSRF protection enabled, the MCP Client node sent requests to a user-supplied endpoint without routing them through that protection and without pinning the resolved address. An authenticated user who could create or edit a workflow could therefore cause the server t...

Server-side Request Forgery (SSRF)

Overview @n8n/n8n-nodes-langchain is a Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the MCP Client. An attacker can access internal or otherwise restricted network resources by supplying crafted endpoints, causing the server to connect to unintended host...