CVE-2026-54093

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-gxjx-7m74-hcq8
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-gxjx-7m74-hcq8

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-25 19:16

Updated : 2026-06-25 19:58

NVD link : CVE-2026-54093

Mitre link : CVE-2026-54093

CVE.ORG link : CVE-2026-54093

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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