CVE-2026-46559

ImageMagick: Heap Buffer Over-Write of a single byte in the JP2 encoder

State: Published
Severity: 4.0 Medium
Published: Jun 10, 2026
Updated: Jun 11, 2026
Reserved: May 14, 2026

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, an incorrect check in the JP2 will result in an heap buffer over-write of a single byte when specifying certain options. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.

Scores

CVSS	Score	Vector	Source
3.1	4.0 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	GitHub_M

Weaknesses

CWE-193 Off-by-one Error
CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
ImageMagickImageMagick	< 6.9.13-48Affected < 7.1.2-23Affected

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-533m-3wf6-c33v

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