CVE-2026-44074 Bitwise OR of errno values
A remote attacker can cause minor service disruption in Netatalk by triggering incorrect error-handling paths due to improper errno combination.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44074?
CVE-2026-44074 is a low-severity denial of service vulnerability in Netatalk, published on 21 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Netatalk 2.1.0 through 4.4.2 combines multiple errno values using bitwise OR, resulting in incorrect error codes when multiple error conditions occur simultaneously, which may allow a remote attacker to cause a minor service disruption via conditions that trigger incorrect error-handling paths.
Weakness: CWE-682
Which versions are affected by CVE-2026-44074?
How do I fix CVE-2026-44074?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-44074 being exploited?
There is no known exploitation of CVE-2026-44074 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44074, GHSA-2pwf-3x8m-5x9q, UBUNTU-CVE-2026-44074.