CVE-2026-33899 MEDIUM

CVE-2026-33899: ImageMagick: Heap BufferOverflow write of single zero byte when parsing XML

Vendor Imagemagick
Product ImageMagick
Weakness CWE-122
Published April 13, 2026
Last update April 16, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-189 and 6.9.13-44, when `Magick` parses an XML file it is possible that a single zero byte is written out of the bounds. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

Key dates

02Disclosure timeline

April 13, 2026 CVE published
April 16, 2026 Record updated