CVE-2026-109278 ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Memory Leak in Wavelet-Denoise Operation
Attackers can cause service degradation by repeatedly triggering a memory leak in the wavelet-denoise operation of ImageMagick.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-109278?
CVE-2026-109278 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 wavelet-denoise operation, which fails to release allocated memory when a required resource cannot be acquired. Attackers can repeatedly trigger wavelet-denoise processing under resource-constrained conditions to leak memory and degrade service availability.
Weakness: CWE-401
Which versions are affected by CVE-2026-109278?
How do I fix CVE-2026-109278?
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-2026-109278 being exploited?
There is no known exploitation of CVE-2026-109278 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-109278, ECHO-6e15-7184-91eb, GHSA-9f9w-84g3-vp2c, GHSA-rm64-w8m2-8frm, UBUNTU-CVE-2026-109278.