Vulnerability Description
n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion (reassignment) path. When deleting a custom project role with a reassignment target, the code validated only that the target role existed and was project-scoped, performing no project-level authorization check. A user holding only the narrow role:manageProject global scope could delete any custom project role in use on the instance and reassign its holders (including themselves) to the built-in project:admin role, gaining full administrative control of projects they had no legitimate access to.
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-xhmh-8fgr-xqhj
- https://www.vulncheck.com/advisories/n8n-before-authorization-bypass-via-custom-
FAQ
What is CVE-2026-77079?
CVE-2026-77079 is a documented vulnerability. n8n before 2.34.1 and 2.33.4 contains an authorization bypass in the custom project role deletion (reassignment) path. When deleting a custom project role with a reassignment target, the code validate...
How severe is CVE-2026-77079?
CVSS scoring is not yet available for CVE-2026-77079. Check NVD for updates.
Is there a patch for CVE-2026-77079?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.