CVE-2026-73613

High

Description

filebrowser versions before 2.63.19 contain an out-of-scope file deletion vulnerability in the TUS upload cache eviction mechanism that allows authenticated users with only Create permission to delete arbitrary files outside their scope. Attackers can swap an ancestor directory with a symlink during the cache TTL window to redirect the raw os.Remove call to an out-of-scope target, bypassing ScopedFs scope guards and Perm.Delete checks.

SeverityHigh

CVSS8.2

Exploit probability—

ProductFilebrowser

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-59Improper link resolution

How to fix

Update

filebrowser filebrowser2.63.19 or later

Vendor advisories

github.com/filebrowser/filebrowser/security/advisories/GHSA-m9f5-2232-frp6

Affected products

Product	Affected versions	Fixed in
filebrowser filebrowser	v < 2.63.19	2.63.19

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