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.

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Imagemagick
  • Imagemagick

Configuration 1 [-]

OR cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/ImageMagick/ImageMagick cve-icon cve-icon cve-icon
https://github.com/ImageMagick/ImageMagick/blob/7.1.2-31/coders/gif.c#L1168-L1196 cve-icon cve-icon cve-icon
https://github.com/ImageMagick/ImageMagick/commit/a0ca2c739c0216ff4efbd631d1ba7fd54dba1ff4 cve-icon cve-icon cve-icon
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-rvv7-5mh8-vcfc cve-icon cve-icon cve-icon
https://github.com/ImageMagick/ImageMagick6/commit/95dc0fd21a684bfac2bdb6fb6638c0ab271adbe5 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-102635 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-102635 cve-icon
https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-32-and-6.9.13-57-uninitialized-heap-memory-disclosure-in-gif-decoder cve-icon cve-icon cve-icon
History

Wed, 30 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 30 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Low

Tue, 29 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title ImageMagick before 7.1.2-32 and 6.9.13-57 Uninitialized Heap Memory Disclosure in GIF Decoder
First Time appeared Imagemagick
Imagemagick imagemagick
Weaknesses CWE-908
CPEs cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Vendors & Products Imagemagick
Imagemagick imagemagick
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-29T16:04:18.036Z

Updated: 2026-09-30T20:11:08.860Z

Reserved: 2026-09-29T15:50:38.575Z

Link: CVE-2026-102635

cve-icon Vulnrichment

Updated: 2026-09-30T19:33:09.583Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T17:17:07.323

Modified: 2026-10-15T14:03:27.510

Link: CVE-2026-102635

cve-icon Redhat

Severity : Low

Publid Date: 2026-09-29T16:04:18Z

Links: CVE-2026-102635 - Bugzilla