CVE-2026-90930

Medium

Description

File Browser through 2.63.23 applies path rules to the requested lexical path but resolves symbolic links without reapplying rules to the target, allowing authenticated users to bypass deny rules. Attackers can read and overwrite rule-denied files by accessing them through in-scope symbolic link aliases that resolve to denied paths.

SeverityMedium

CVSS6.8

Exploit probability—

ProductFilebrowser

PublishedSep 14, 2026

First seenSep 14, 2026

Weakness typeCWE-59Improper link resolution

How to fix

Vendor advisories

github.com/filebrowser/filebrowser/security/advisories/GHSA-7w29-q235-57m9

Affected products

Product	Affected versions	Fixed in
filebrowser filebrowser	v ≤ 2.63.23	—

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