Vulnerability Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, filebrowser builds the download-as-zip / download-as-tar archive entry names with filepath.ToSlash, which on a Linux host is a no-op for backslashes (\ is only a path separator on Windows). A file whose name contains Windows-style traversal is accepted by the resource handlers, stored on the Linux filesystem with a literal backslash name, and then emitted verbatim as the archive entry name. Windows extractors interpret \ as a path separator and write the extracted file outside the extraction directory — arbitrary file write on the victim who downloads and extracts the archive. This vulnerability is fixed in 2.63.6.
Related Weaknesses (CWE)
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-gxjx-7m74-hc
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-gxjx-7m74-hc
FAQ
What is CVE-2026-54093?
CVE-2026-54093 is a documented vulnerability. File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, filebrowser builds the download-as-zip / downl...
How severe is CVE-2026-54093?
CVSS scoring is not yet available for CVE-2026-54093. Check NVD for updates.
Is there a patch for CVE-2026-54093?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.