CVE-2026-75466 Denial of service in n/a
An attacker can cause a denial of service via division-by-zero in libjpeg-turbo when processing specific indexed-color PNG images.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-75466?
CVE-2026-75466 is a medium-severity denial of service vulnerability in n/a, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
libjpeg-turbo 3.2.0 contains an integer division-by-zero vulnerability in the PNG loader. When processing a valid indexed-color PNG image with a non-gray palette through tj3LoadImage12() or tj3LoadImage16() using the default pixel format, the application may trigger a division-by-zero in alloc_sarray(), causing a SIGFPE and denial of service.
Weakness: CWE-369
Which versions are affected by CVE-2026-75466?
How do I fix CVE-2026-75466?
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-2026-75466 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75466 exists.
Sources
Also known as ECHO-aa1e-733e-c387, GHSA-8cx9-6hv6-67qj, UBUNTU-CVE-2026-75466.