Vulnerability Description
n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection, exposing internal services and reading responses back through the workflow.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | >= 2.31.0, < 2.31.5 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vhf8-cg2h-cg3pMitigationVendor Advisory
- https://www.vulncheck.com/advisories/n8n-before-ssrf-protection-bypass-via-mcp-cThird Party Advisory
FAQ
What is CVE-2026-72768?
CVE-2026-72768 is a vulnerability with a CVSS score of 8.3 (HIGH). n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft ...
How severe is CVE-2026-72768?
CVE-2026-72768 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72768?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.