Vulnerability Description
n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. From version 2.18.7 to before version 2.50.2, there is an authenticated server-side request forgery vulnerability affecting the webhook trigger tools, the n8n API client (N8N_API_URL), and per-request URLs supplied via the x-n8n-url header in multi-tenant HTTP mode. This issue has been patched in version 2.50.2.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N-Mcp | N8N-Mcp | >= 2.18.7, < 2.50.2 |
Related Weaknesses (CWE)
References
- https://github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553aPatch
- https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2ProductRelease Notes
- https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9rMitigationVendor Advisory
FAQ
What is CVE-2026-44694?
CVE-2026-44694 is a vulnerability with a CVSS score of 9.1 (CRITICAL). n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. From version 2.18.7 to before version 2.50.2, there is an authenticated server-side r...
How severe is CVE-2026-44694?
CVE-2026-44694 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-44694?
Check the references section above for vendor advisories and patch information. Affected products include: N8N-Mcp N8N-Mcp.