Vulnerability · Published Apr 13, 2026 · Assigned by GitHub_M
CVE-2026-33899ImageMagick: Heap BufferOverflow write of single zero byte when parsing XML
Medium 5.3
In plain English
A medium-severity heap buffer overflow in ImageMagick from ImageMagick. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | imagemagick | 7.1.2.19-r0 | ALPINE-CVE-2026-33899 |
| Alpine:v3.24 | imagemagick | 7.1.2.19-r0 | ALPINE-CVE-2026-33899 |
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u9 | DEBIAN-CVE-2026-33899 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u8 | DEBIAN-CVE-2026-33899 |
| Debian:14 | imagemagick | 8:7.1.2.19+dfsg1-1 | DEBIAN-CVE-2026-33899 |
| NuGet | magick.net-q16-anycpu | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-arm64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-hdri-anycpu | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-hdri-arm64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-hdri-openmp-arm64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-hdri-x64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-hdri-x86 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-openmp-arm64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-openmp-x64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-x64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q16-x86 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q8-anycpu | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q8-arm64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q8-openmp-arm64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q8-openmp-x64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q8-x64 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| NuGet | magick.net-q8-x86 | 14.12.0 | GHSA-cr67-pvmx-2pp2 |
| Ubuntu:25.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-33899 |
| Ubuntu:26.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-33899 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 6.9.13-44< 7.1.2-19 |
Weakness: CWE-122, CWE-191 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-cr67-pvmx-2pp2 x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/ae679e2fd19ec656bfab9f822ae4cf06bf91604d x_refsource_MISC
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19 x_refsource_MISC
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0 x_refsource_MISC