CVE-2026-102635— ImageMagick before 7.1.2-32 and 6.9.13-57 Uninitialized Heap Memory Disclosure in GIF Decoder
Quick assessment
Affected
ImageMagick ImageMagick
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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
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I. Basic Information for CVE-2026-102635
Vulnerability Information
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Vulnerability Title
ImageMagick before 7.1.2-32 and 6.9.13-57 Uninitialized Heap Memory Disclosure in GIF Decoder
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对未经初始化资源的使用
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ImageMagick | ImageMagick | 7.0.0-0 ~ 7.1.2-32 | - |
|
II. Public POCs for CVE-2026-102635
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-102635 (6)
-
https://github.com/ImageMagick/ImageMagick/blob/7.1.2-31/coders/gif.c#L1168-L1196 technical-description
IV. Related Vulnerabilities
Same product: ImageMagick
-
CVE-2026-93590
ImageMagick before 7.1.2-31 Policy Bypass in UHDR encoder -
CVE-2026-93589
ImageMagick before 7.1.2-31 Division by Zero in FLIF encoder -
CVE-2026-93588
ImageMagick before 7.1.2-31 Null Pointer Dereference via PNM -
CVE-2026-93587
ImageMagick before 7.1.2-31 Policy Bypass via PCD decoder -
CVE-2026-93586
ImageMagick before 7.1.2-31 Use After Free via ImagesToBlob
Same vendor: ImageMagick
-
CVE-2026-93590
ImageMagick before 7.1.2-31 Policy Bypass in UHDR encoder -
CVE-2026-93588
ImageMagick before 7.1.2-31 Null Pointer Dereference via PNM -
CVE-2026-93589
ImageMagick before 7.1.2-31 Division by Zero in FLIF encoder -
CVE-2026-93587
ImageMagick before 7.1.2-31 Policy Bypass via PCD decoder -
CVE-2026-93586
ImageMagick before 7.1.2-31 Use After Free via ImagesToBlob
V. Comments for CVE-2026-102635
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