CVE-2026-102635 ImageMagick before 7.1.2-32 and 6.9.13-57 Uninitialized Heap Memory Disclosure in GIF Decoder
Attackers can disclose sensitive heap memory information by crafting malicious GIF files processed by 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-2026-102635?
CVE-2026-102635 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ImageMagick versions before 7.1.2-32 and 6.9.13-57 contain uninitialized heap memory disclosure in the GIF decoder's application extension handler in coders/gif.c. Attackers can craft malicious GIF files that cause the number parser to read uninitialized heap memory and store contents as image metadata, disclosing sensitive heap information.
Weakness: CWE-908
Which versions are affected by CVE-2026-102635?
It affects 1 product.
Products include Imagemagick Imagemagick.
How do I fix CVE-2026-102635?
Upgrade to a fixed version.
Is CVE-2026-102635 being exploited?
There is no known exploitation of CVE-2026-102635 in the wild and no public exploit code.
Other vulnerabilities in Imagemagick Imagemagick
Sources
Also known as DEBIAN-CVE-2026-102635, ECHO-b8b3-63cc-9f59, GHSA-prg6-qcxr-rp63, GHSA-rvv7-5mh8-vcfc, MINI-h4h2-gx62-22q8, UBUNTU-CVE-2026-102635.