Vulnerability Description
n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schema module path directly from the attacker-supplied node type string without validating path-traversal sequences. An authenticated user with global:member privileges can reference malicious files via path traversal, causing code execution in the n8n main process.
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-6h4x-896x-fw5m
- https://www.vulncheck.com/advisories/n8n-before-remote-code-execution-via-path-t
FAQ
What is CVE-2026-77068?
CVE-2026-77068 is a documented vulnerability. n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schem...
How severe is CVE-2026-77068?
CVSS scoring is not yet available for CVE-2026-77068. Check NVD for updates.
Is there a patch for CVE-2026-77068?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.