Vulnerability Description
n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are attached, the node enforces the allowed-domains policy of only the first credential while still attaching material from both. An authenticated user with workflow-authoring rights can thereby send a domain-restricted credential to an attacker-controlled endpoint, exfiltrating it with the leaked credential's permissions.
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-wcv8-x773-j96r
- https://www.vulncheck.com/advisories/n8n-before-allowed-domains-bypass-via-graph
FAQ
What is CVE-2026-77081?
CVE-2026-77081 is a documented vulnerability. n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentic...
How severe is CVE-2026-77081?
CVSS scoring is not yet available for CVE-2026-77081. Check NVD for updates.
Is there a patch for CVE-2026-77081?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.