CVE-2026-44075 Missing break in DSI OpenSession
A missing break statement in Netatalk allows remote attackers to cause minor service disruption via crafted DSI session options.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44075?
CVE-2026-44075 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
A missing break statement in DSI OpenSession processing in Netatalk 1.5.0 through 4.4.2 causes a DSIOPT_ATTNQUANT switch case to fall through into DSIOPT_SERVQUANT, resulting in unintended session option handling that may allow a remote attacker to cause a minor service disruption via crafted DSI session options.
Weakness: CWE-484
Which versions are affected by CVE-2026-44075?
How do I fix CVE-2026-44075?
Apply the vendor's patch.
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-2026-44075 being exploited?
There is no known exploitation of CVE-2026-44075 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44075, GHSA-8qf9-m7wh-563j, UBUNTU-CVE-2026-44075.