CVE-2026-72839

Critical

Description

filebrowser through 2.63.16 fails to properly restrict scope and permissions when self-signup is enabled with default CreateUserDir setting. Unauthenticated attackers can register accounts that inherit the server root scope with full create, modify, delete, rename, share, and download permissions, allowing unrestricted access to all files.

SeverityCritical

CVSS9.8

Exploit probability—

ProductFilebrowser

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-266CWE-266

How to fix

Vendor advisories

github.com/filebrowser/filebrowser/security/advisories/GHSA-6759-996p-gpj6

Affected products

Product	Affected versions	Fixed in
filebrowser filebrowser	v ≤ 2.63.16	—

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.