Medium severity · published Sep 29, 2026
CVE-2026-102635
ImageMagick before 7.1.2-32 and 6.9.13-57 Uninitialized Heap Memory Disclosure in GIF Decoder
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IM
ImageMagick · ImageMagick
7.0.0-0 before 7.1.2-32; before 6.9.13-57 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102635
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102635
vendor-advisory
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-rvv7-5mh8-vcfc
patch
https://github.com/ImageMagick/ImageMagick/commit/a0ca2c739c0216ff4efbd631d1ba7fd54dba1ff4
patch
https://github.com/ImageMagick/ImageMagick6/commit/95dc0fd21a684bfac2bdb6fb6638c0ab271adbe5
technical-description
https://github.com/ImageMagick/ImageMagick/blob/7.1.2-31/coders/gif.c#L1168-L1196
product
https://github.com/ImageMagick/ImageMagick
third-party-advisory
https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-32-and-6.9.13-57-uninitialized-heap-memory-disclosure-in-gif-decoder
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