gtsteffaniak FileBrowser prior 1.5.2-stable/2.0.1-beta Indexing indexingFiles.go path traversal

Summaryinfo

A vulnerability categorized as problematic has been discovered in gtsteffaniak FileBrowser. Affected by this vulnerability is an unknown functionality of the file backend/pkg/indexing/indexingFiles.go of the component Indexing. Such manipulation leads to path traversal. This vulnerability is documented as CVE-2026-116682. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in gtsteffaniak FileBrowser. It has been rated as problematic. Affected by this issue is an unknown functionality of the file backend/pkg/indexing/indexingFiles.go of the component Indexing. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. CVE summarizes:

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.5.2-stable and 2.0.1-beta, file read handling in backend/pkg/indexing/indexingFiles.go resolves symbolic links through GetRealPath without confirming that the resolved target remains inside the source root and the user's authorized scope. Download, preview, media, OnlyOffice, and public-share read flows that enable FollowSymlinks can therefore serve an out-of-scope target through a reachable in-scope symlink. An authenticated user with download access can read server-accessible files outside the assigned scope, and a holder of a public share link can do the same without an account when the shared directory exposes such a symlink. This issue is fixed in 1.5.2-stable and 2.0.1-beta.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-116682 since 10/26/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 1.5.2-stable or 2.0.1-beta eliminates this vulnerability.

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Productinfo

Vendor

• gtsteffaniak

Name

• FileBrowser

Website

• Product: https://github.com/gtsteffaniak/filebrowser/

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