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CVE-2026-44694

Published: May 8, 2026

Modified: May 12, 2026

PUBLISHED

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.

Vendor	Product	Versions
czlonkowski	n8n-mcp	affected `>= 2.18.7, < 2.50.2`

Weaknesses (CWE)

References

https://github.com/czlonkowski/n8n-mcp/security/advisories/GHSA-cmrh-wvq6-wm9r

x_refsource_CONFIRM

https://github.com/czlonkowski/n8n-mcp/commit/bcaba839409d470abeb4a6ad9b361b553a1098eb

x_refsource_MISC

https://github.com/czlonkowski/n8n-mcp/releases/tag/v2.50.2

x_refsource_MISC

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