CVE-2026-72837: Filebrowser

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

File Browser versions before 2.63.20 fail to honor the createUserDir isolation in proxy and hook authentication auto-provisioning paths. Attackers with valid upstream-authenticated credentials can read, modify, delete, and share files belonging to other users by exploiting the server root scope assignment.

Affected products

• Filebrowser Filebrowser: before 2.63.20 (fixed in 2.63.20)

Published 2026-08-14. Last modified 2026-09-08.