CVE-2026-44694
Critical · 9.1CVSS
9.1
EPSS
0.3%
Published
May 8, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | n8n-mcp | 2.18.7 | 2.50.2 |
Related vulnerabilities
- GHSA-cmrh-wvq6-wm9r n8n-mcp webhook and API client paths has an authenticated SSRF Same vulnerability
- CVE-2026-45707 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- CVE-2026-45582 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- GHSA-jxx9-px88-pj69 n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant… Also affects n8n-mcp
- GHSA-f3rg-xqjj-cj9w n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node… Also affects n8n-mcp
- CVE-2026-42282 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- CVE-2026-41495 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- GHSA-8g7g-hmwm-6rv2 n8n-mcp affected by path traversal, redirect-following SSRF, and telemetry payload… Also affects n8n-mcp