CVE-2026-109271 ImageMagick 7.1.2-30 before 7.1.2-32 Use After Free in WBINFO Decoder
Attackers can cause a denial of service by supplying a crafted image that triggers a use-after-free error in the WBINFO decoder during memory allocation failures.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-109271?
CVE-2026-109271 is a medium-severity use after free 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 7.1.2-30 before 7.1.2-32 contains a use after free vulnerability in the WBINFO decoder that occurs when a memory allocation fails during image decoding. Attackers can supply a crafted image that, when decoded under memory allocation failure conditions, causes freed memory to be reused, crashing the application.
Weakness: CWE-415
Which versions are affected by CVE-2026-109271?
How do I fix CVE-2026-109271?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-109271 being exploited?
There is no known exploitation of CVE-2026-109271 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-109271, ECHO-5397-77d3-70b8, GHSA-h82h-8q6v-f57g, GHSA-vxwm-jfjc-3r4x, UBUNTU-CVE-2026-109271.