Vulnerability Description
filebrowser versions before v2.63.21 fail to canonicalize paths before evaluating access rules, allowing authenticated users to bypass administrator-defined deny rules using case-variant or backslash-separated paths. Attackers can request files with alternate path representations that match no rule but resolve to the same filesystem object, gaining unauthorized access to denied files within their scope.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-fgm5-pw99-w2
- https://www.vulncheck.com/advisories/filebrowser-before-access-rule-bypass-via-p
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-fgm5-pw99-w2
FAQ
What is CVE-2026-72835?
CVE-2026-72835 is a vulnerability with a CVSS score of 6.8 (MEDIUM). filebrowser versions before v2.63.21 fail to canonicalize paths before evaluating access rules, allowing authenticated users to bypass administrator-defined deny rules using case-variant or backslash-...
How severe is CVE-2026-72835?
CVE-2026-72835 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-2026-72835?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.