Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M
CVE-2026-46559ImageMagick: Heap Buffer Over-Write of a single byte in the JP2 encoder
Medium 4.0
In plain English
A medium-severity out-of-bounds write 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 0.1% (higher than 2% 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. 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | imagemagick | 7.1.2.24-r0 | ALPINE-CVE-2026-46559 |
| Alpine:v3.24 | imagemagick | 7.1.2.23-r0 | ALPINE-CVE-2026-46559 |
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u10 | DEBIAN-CVE-2026-46559 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u9 | DEBIAN-CVE-2026-46559 |
| Debian:14 | imagemagick | 8:7.1.2.23+dfsg1-1 | DEBIAN-CVE-2026-46559 |
| NuGet | magick.net-q16-anycpu | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-arm64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-hdri-anycpu | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-hdri-arm64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-hdri-openmp-arm64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-hdri-openmp-x64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-hdri-x64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-hdri-x86 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-openmp-arm64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-openmp-x64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-x64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q16-x86 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q8-anycpu | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q8-arm64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q8-openmp-arm64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q8-openmp-x64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q8-x64 | 14.13.1 | GHSA-533m-3wf6-c33v |
| NuGet | magick.net-q8-x86 | 14.13.1 | GHSA-533m-3wf6-c33v |
| Ubuntu:25.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-46559 |
| Ubuntu:26.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-46559 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 6.9.13-48< 7.1.2-23 |
Weakness: CWE-193, CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L