CVE-2026-44054 Predictable afpd session token
Remote authenticated attackers can cause denial of service in Netatalk by exploiting predictable session tokens derived from process IDs.
- 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-2026-44054?
CVE-2026-44054 is a medium-severity denial of service 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
Netatalk 2.0.0 through 4.4.2 generates AFP session tokens derived from predictable process IDs, which allows a remote authenticated attacker to cause a denial of service by exploiting the reconnect mechanism.
Weakness: CWE-330
Which versions are affected by CVE-2026-44054?
How do I fix CVE-2026-44054?
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-2026-44054 being exploited?
There is no known exploitation of CVE-2026-44054 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44054, GHSA-q5xh-737m-h26f, UBUNTU-CVE-2026-44054.