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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-44694

n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API client paths

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

czlonkowski n8n-mcp

  • >= 2.18.7, < 2.50.2affected

References