CVE-2026-109263 ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in YUV Encoder
Attackers can cause a denial of service by supplying crafted input that triggers a memory leak in the YUV encoder, exhausting system resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-109263?
CVE-2026-109263 is a medium-severity denial of service vulnerability in ImageMagick, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 contains a memory leak in the YUV encoder, which fails to release allocated memory when a specific operation fails. Attackers can supply crafted input that triggers the failing encoder operation, leaking memory and potentially exhausting resources to cause a denial of service.
Weakness: CWE-401
Which versions are affected by CVE-2026-109263?
How do I fix CVE-2026-109263?
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-2026-109263 being exploited?
There is no known exploitation of CVE-2026-109263 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-109263, ECHO-e255-c794-4938, GHSA-69jx-j2x2-g5w4, GHSA-fhv3-69qw-xpc9, UBUNTU-CVE-2026-109263.