CVE-2026-44070 Unbounded realloc in charset conversion
A remote authenticated attacker can cause a minor denial of service in Netatalk by triggering unbounded memory reallocation during charset conversion.
- 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-2026-44070?
CVE-2026-44070 is a low-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
An unbounded memory reallocation in the charset conversion code in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to cause a minor denial of service via crafted character conversion requests.
Weakness: CWE-770
Which versions are affected by CVE-2026-44070?
How do I fix CVE-2026-44070?
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-2026-44070 being exploited?
There is no known exploitation of CVE-2026-44070 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44070, GHSA-vmvv-qm72-v4fg, UBUNTU-CVE-2026-44070.