Vulnerability Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Versions 2.61.2 and below are vulnerable to Path Traversal through the resourcePatchHandler (http/resource.go). The destination path in resourcePatchHandler is validated against access rules before being cleaned/normalized, while the actual file operation calls path.Clean() afterward—resolving .. sequences into a different effective path. This allows an authenticated user with Create or Rename permissions to bypass administrator-configured deny rules (both prefix-based and regex-based) by injecting .. sequences in the destination parameter of a PATCH request. As a result, the user can write or move files into any deny-rule-protected path within their scope. However, this cannot be used to escape the user's BasePathFs scope or read from restricted paths. This issue has been fixed in version 2.62.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Filebrowser | Filebrowser | < 2.62.0 |
Related Weaknesses (CWE)
References
- https://github.com/filebrowser/filebrowser/commit/4bd7d69c82163b201a987e99c0c50dPatch
- https://github.com/filebrowser/filebrowser/releases/tag/v2.62.0ProductRelease Notes
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-9f3r-2vgw-m8MitigationVendor Advisory
FAQ
What is CVE-2026-32758?
CVE-2026-32758 is a vulnerability with a CVSS score of 6.5 (MEDIUM). File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Versions 2.61.2 and below are vulnerable to Path Traversal thro...
How severe is CVE-2026-32758?
CVE-2026-32758 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32758?
Check the references section above for vendor advisories and patch information. Affected products include: Filebrowser Filebrowser.