Product
When ENABLE_MULTI_TENANT=true, n8n-mcp requests that omit x-n8n-url or x-n8n-key headers silently fall back to the process-level N8N_API_URL / N8N_API_KEY credentials configured for the operator's own n8n instance; an authenticated MCP tenant could cause n8n management calls to execute against the operator's instance instead of its own, leading to potential data access and code execution on the operator's n8n instance.