CVE-2026-44055 Bitwise OR logic bug enables shell injection
A remote authenticated attacker can execute arbitrary OS commands due to a bitwise OR logic error in Netatalk.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44055?
CVE-2026-44055 is a high-severity command injection vulnerability in Netatalk, published on 21 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A logic error involving bitwise OR operations in Netatalk 3.1.4 through 4.4.2 allows a remote authenticated attacker to inject OS commands and execute arbitrary code.
Weakness: CWE-78
Which versions are affected by CVE-2026-44055?
How do I fix CVE-2026-44055?
Upgrade to a fixed version.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-44055 being exploited?
There is no known exploitation of CVE-2026-44055 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44055, GHSA-2jff-6g6p-wr79, UBUNTU-CVE-2026-44055.