CVE-2026-91205

Medium

Description

A flaw was found in cockpit-files. A local unprivileged attacker can exploit a race condition during directory creation with owner assignment. By controlling a writable parent directory, the attacker can replace a newly created directory with a symbolic link (symlink) before the ownership change operation (chown) is applied. This allows the attacker to redirect the ownership change to an arbitrary file, potentially leading to information disclosure or unauthorized modification of sensitive files.

SeverityMedium
CVSS6.0
Exploit probability—
ProductEnterprise Linux 9
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-363CWE-363

How to fix

Affected products

ProductAffected versionsFixed in
enterprise_linux 9No range specified—
Red Hat Red Hat Enterprise Linux 10No range specified—

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.