Critical severity9.1GHSA Advisory· Published May 8, 2026· Updated May 14, 2026
CVE-2026-44694
CVE-2026-44694
Description
n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. From version 2.18.7 to before version 2.50.2, there is an authenticated server-side request forgery vulnerability affecting the webhook trigger tools, the n8n API client (N8N_API_URL), and per-request URLs supplied via the x-n8n-url header in multi-tenant HTTP mode. This issue has been patched in version 2.50.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
n8n-mcpnpm | >= 2.18.7, < 2.50.2 | 2.50.2 |
Affected products
3>= 2.18.7, < 2.50.2+ 1 more
- (no CPE)range: >= 2.18.7, < 2.50.2
- cpe:2.3:a:n8n-mcp:n8n-mcp:*:*:*:*:*:*:*:*range: >=2.18.7,<2.50.2
Patches
Vulnerability mechanics
References
5- github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553a1098ebnvdPatchWEB
- github.com/advisories/GHSA-cmrh-wvq6-wm9rghsaADVISORY
- github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9rnvdMitigationVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-44694ghsaADVISORY
- github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2nvdProductRelease NotesWEB
News mentions
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