CVE-2026-44058 Authentication bypass via admin auth user
Remote privileged users can bypass authentication to log in as arbitrary users in Netatalk, requiring an upgrade to secure the file server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44058?
CVE-2026-44058 is a medium-severity authentication bypass vulnerability in Netatalk, published on 21 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An authentication bypass vulnerability in Netatalk 2.2.2 through 4.4.2 allows a remote privileged user to authenticate as an arbitrary user via the admin auth user mechanism.
Weakness: CWE-287
Which versions are affected by CVE-2026-44058?
How do I fix CVE-2026-44058?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-44058 being exploited?
There is no known exploitation of CVE-2026-44058 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44058, GHSA-3jh8-xjh7-hwv3, UBUNTU-CVE-2026-44058.