CVE-2026-28492 HIGH

CVE-2026-28492: File Browser: Path Traversal in Public Share Links Exposes Files Outside Shared Directory

Vendor Filebrowser
Product filebrowser
Weakness CWE-200 · Info exposure
Published March 5, 2026
Last update March 6, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.61.0, when a user creates a public share link for a directory, the withHashFile middleware in http/public.go uses filepath.Dir(link.Path) to compute the BasePathFs root. This sets the filesystem root to the parent directory instead of the shared directory itself, allowing anyone with the share link to browse and download files from all sibling directories. This issue has been patched in version 2.61.0.

Key dates

02Disclosure timeline

March 5, 2026 CVE published
March 6, 2026 Record updated