CVE-2026-6192 uclouvain openjpeg pi.c opj_pi_initialise_encode integer overflow
A local attacker can trigger an integer overflow in OpenJPEG's encoding initialization, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-6192?
CVE-2026-6192 is a medium-severity vulnerability in uclouvain openjpeg, published on 13 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was identified in uclouvain openjpeg up to 2.5.4. This impacts the function opj_pi_initialise_encode in the library src/lib/openjp2/pi.c. The manipulation leads to integer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is 839936aa33eb8899bbbd80fda02796bb65068951. It is suggested to install a patch to address this issue.
Which versions are affected by CVE-2026-6192?
How do I fix CVE-2026-6192?
Apply the vendor's patch.
Is CVE-2026-6192 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6192 exists.
Sources
Also known as ALPINE-CVE-2026-6192, AZL-83042, BELL-CVE-2026-6192, DEBIAN-CVE-2026-6192, ECHO-a92e-9791-007a, GHSA-6jfp-5ggc-pgmx and 8 more.