CVE-2026-72837

High

Description

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductFilebrowser

PublishedAug 14, 2026

First seenAug 14, 2026

Weakness typeCWE-284Improper access control

How to fix

Update

filebrowser filebrowser2.63.20 or later

Vendor advisories

github.com/filebrowser/filebrowser/security/advisories/GHSA-j7jh-37pf-mf8h

Affected products

Product	Affected versions	Fixed in
filebrowser filebrowser	v < 2.63.20	2.63.20

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.