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CVE-2026-44694 is an authenticated server-side request forgery (SSRF) vulnerability in n8n-MCP, an MCP server that exposes n8n node documentation, properties, and operations to AI assistants. According to the provided content, the issue affects versions 2.18.7 through before 2.50.2 and impacts multiple URL-fetching paths: webhook trigger tools, the n8n API client via the N8N_API_URL setting, and per-request URLs supplied through the x-n8n-url header when running in multi-tenant HTTP mode. An authenticated attacker can cause the server to initiate outbound requests to attacker-controlled or otherwise unintended destinations through these mechanisms. The issue is patched in version 2.50.2.
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