Executive brief
ImageMagick, a widely used open-source tool for image processing, is vulnerable to a flaw that occurs when handling specially crafted image files. An attacker could exploit this to cause a denial-of-service condition, potentially crashing applications or services that rely on ImageMagick to process user-uploaded images. This could disrupt business operations and service availability for platforms that automate image manipulation.
Technical details
A heap-based buffer overflow (CWE-122) exists in the MVG (Magick Vector Graphics) decoder of ImageMagick. The vulnerability is located in the RenderMVGContent function within MagickCore/draw.c, where insufficient bounds checking on the 'q' and 'p' pointers can lead to an out-of-bounds write. A remote, unauthenticated attacker can exploit this by providing a specially crafted image file for processing. Successful exploitation primarily impacts service availability by causing a crash (Denial of Service). The issue is resolved in ImageMagick versions 7.1.2-19 and 6.9.13-44.
Affected products
- ImageMagick ImageMagick < 7.1.2-19, < 6.9.13-44
- Red Hat Red Hat Enterprise Linux 6 affected
- Red Hat Red Hat Enterprise Linux 7 affected
Timeline
- 2026-04-13: disclosed
- 2026-04-13: advisory
- 2026-04-13: patched
References
- https://github.com/ImageMagick/ImageMagick/commit/4c72003e9e54a4ebaa938d239e75f5d285527ebe
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-x9h5-r9v2-vcww
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- https://access.redhat.com/security/cve/CVE-2026-33901
- https://bugzilla.redhat.com/show_bug.cgi?id=2458023
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33901.json