CVE-2026-41495 n8n-MCP Logs Sensitive Request Data on Unauthorized /mcp Requests

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to version 2.47.11, when n8n-mcp runs in HTTP transport mode, incoming requests to the POST /mcp endpoint had their request metadata written to server logs regardless of the...

LogToServer action lets anyone log messages to the server log

Available without authentication. This can be used to hide breakin attempts or fill the disk if no log rotation is in place...