n8n-mcp — Vulnerabilities & Security Advisories 9

All 9 CVE vulnerabilities found in n8n-mcp, with AI-generated Chinese analysis, references, and POCs.

CVE ID	Title	CVSS	Severity	Published
CVE-2026-55608	n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode CWE-200	4.2	Medium	2026-07-15
CVE-2026-54052	n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments CWE-639	9.9	Critical	2026-07-15
CVE-2026-45582	n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters CWE-201	6.5	Medium	2026-05-29
CVE-2026-45707	n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete CWE-284	8.1	High	2026-05-29
CVE-2026-44694	n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API client paths CWE-367	8.1^AI	High ^AI	2026-05-08
CVE-2026-42282	n8n-MCP: Sensitive MCP tool-call arguments logged on authenticated requests in HTTP mode CWE-532	4.3	Medium	2026-05-08
CVE-2026-41495	n8n-MCP Logs Sensitive Request Data on Unauthorized /mcp Requests CWE-532	5.3	Medium	2026-05-08
CVE-2026-42449	n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders CWE-918	8.5	High	2026-05-07
CVE-2026-39974	n8n-MCP has an Authenticated SSRF via instance-URL header in multi-tenant HTTP mode CWE-918	8.5	High	2026-04-09

All 9 known CVE vulnerabilities affecting n8n-mcp with full Chinese analysis, references, and POCs where available.