CVE-2026-93589 ImageMagick before 7.1.2-31 Division by Zero in FLIF encoder
A division-by-zero flaw in the FLIF encoder allows attackers to crash the application via a crafted image, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-93589?
CVE-2026-93589 is a medium-severity denial of service vulnerability in Imagemagick Imagemagick, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ImageMagick before 7.1.2-31 and 6.9.13-56 contains a division-by-zero flaw in the FLIF encoder. An incorrect value for ticks per second in the image being encoded causes a divide-by-zero and crashes the encoder, resulting in a denial of service. The issue is fixed in 7.1.2-31 and 6.9.13-56.
Weakness: CWE-369
Which versions are affected by CVE-2026-93589?
It affects 1 product.
Products include Imagemagick Imagemagick.
How do I fix CVE-2026-93589?
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-2026-93589 being exploited?
There is no known exploitation of CVE-2026-93589 in the wild and no public exploit code.
Other vulnerabilities in Imagemagick Imagemagick
Sources
Also known as CLSA-2026-1790239455, CLSA-2026-1790239696, CLSA-2026-1790241027, CLSA-2026-1791529719, DEBIAN-CVE-2026-93589, ECHO-ebe4-c3bd-5a97 and 4 more.