HIGHCVE-2026-44694Published Modified CNA GitHub_M
CVE-2026-44694: n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API client paths
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.
Metrics
- CVSS v4.0
- 7.2
- Severity
- HIGH
- Fixed in
- —
- Affected Products
- 1
Affected packages
- czlonkowski / n8n-mcp>= 2.18.7, < 2.50.2
CVSS Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L