N8N Mcp
Monthly
n8n-MCP prior to version 2.47.13 logs sensitive credential material from authenticated MCP tool-call requests when running in HTTP transport mode, allowing disclosure of bearer tokens, OAuth credentials, API keys, and webhook authentication headers to any system with access to server logs. The vulnerability requires valid authentication (AUTH_TOKEN) and affects deployments where logs are collected, forwarded to external systems, or viewable outside the request trust boundary; no public exploit code has been identified.
n8n-MCP prior to version 2.47.13 logs sensitive credential material from authenticated MCP tool-call requests when running in HTTP transport mode, allowing disclosure of bearer tokens, OAuth credentials, API keys, and webhook authentication headers to any system with access to server logs. The vulnerability requires valid authentication (AUTH_TOKEN) and affects deployments where logs are collected, forwarded to external systems, or viewable outside the request trust boundary; no public exploit code has been identified.