CVE-2026-3184

Publication date 26 February 2026

Last updated 6 March 2026


Ubuntu priority

Description

[Access control bypass due to improper hostname canonicalization]

Read the notes from the security team

Status

Package Ubuntu Release Status
util-linux 25.10 questing
Vulnerable
24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes


mdeslaur

Prior to 2.40.2-3, the login package was build from the shadow source package. After that version, so in questing and later, the login package is built from util-linux.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
util-linux