Vulnerability Description
File Browser versions from 2.50.0 through 2.63.21 fail to validate JWT expiration when proxy authentication is configured with a non-default logout page. Attackers with a previously valid token can access protected routes and administrative endpoints indefinitely, and exchange expired tokens for fresh ones via the renewal endpoint.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/filebrowser/filebrowser/commit/72faf6dd3c85628e332d3e567124b8
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-v3jv-rmh2-63
- https://www.vulncheck.com/advisories/file-browser-through-jwt-expiration-bypass
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-v3jv-rmh2-63
FAQ
What is CVE-2026-73611?
CVE-2026-73611 is a vulnerability with a CVSS score of 6.8 (MEDIUM). File Browser versions from 2.50.0 through 2.63.21 fail to validate JWT expiration when proxy authentication is configured with a non-default logout page. Attackers with a previously valid token can ac...
How severe is CVE-2026-73611?
CVE-2026-73611 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73611?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.