Buffer Overflow Vulnerability in ImageMagick Image Processing Software
CVE-2026-23876

8.1HIGH

Key Information:

Vendor

Imagemagick
Status
Imagemagick
Vendor
CVE Published:
20 January 2026

What is CVE-2026-23876?

A vulnerability exists in the XBM image decoder of ImageMagick, where improper handling of crafted image files can lead to a heap buffer overflow. This issue allows an attacker to write data beyond the allocated heap space when images are read or processed, which may lead to arbitrary code execution or other significant impacts. The flaw affects various versions of ImageMagick prior to the updates that resolve this vulnerability. Users are advised to upgrade to the recommended versions to mitigate the risk.

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Affected Version(s)

ImageMagick < 7.1.2-13 < 7.1.2-13

ImageMagick < 6.9.13-38 < 6.9.13-38

References

https://github.com/ImageMagick/ImageMagick/security/advis...
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https://github.com/ImageMagick/ImageMagick/commit/2fae241...
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CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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