CVE-2026-42282

Summary: The CVE concerns n8n-mcp (MCP server) logging sensitive tool-call arguments on authenticated HTTP requests. Affected in HTTP transport mode prior to version 2.47.13, where full arguments and JSON‑RPC params could be written to server logs, exposing credentials and secret-bearing data (e....

n8n-MCP: Sensitive MCP tool-call arguments logged on authenticated requests in HTTP mode

Impact When n8n-mcp runs in HTTP transport mode, authenticated MCP tools/call requests had their full arguments and JSON-RPC params written to server logs by the request dispatcher and several sibling code paths before any redaction. When a tool call carries credential material — most notably...