Vulnerability · Published Jul 30, 2026 · Assigned by GitHub_M
CVE-2026-62946ImageMagick: Integer Overflow in JNX decoder causes heap buffer over-write when processing extremly large files on 32-bit builds
Medium 5.1
In plain English
A medium-severity integer 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 0.1% (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. In versions prior to both 6.9.13-52 and 7.1.2-27, processing an extremely large JNX file on 32-bit platforms can cause an integer overflow, leading to a heap buffer over-write. This issue has been fixed in versions 6.9.13-52 and 7.1.2-27.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u14 | DEBIAN-CVE-2026-62946 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u13 | DEBIAN-CVE-2026-62946 |
| Debian:14 | imagemagick | 8:7.1.2.27+dfsg1-1 | DEBIAN-CVE-2026-62946 |
| NuGet | magick.net-q16-anycpu | 14.15.0 | GHSA-h22j-f9xw-xjjm |
| NuGet | magick.net-q16-hdri-anycpu | 14.15.0 | GHSA-h22j-f9xw-xjjm |
| NuGet | magick.net-q16-hdri-x86 | 14.15.0 | GHSA-h22j-f9xw-xjjm |
| NuGet | magick.net-q16-x86 | 14.15.0 | GHSA-h22j-f9xw-xjjm |
| NuGet | magick.net-q8-anycpu | 14.15.0 | GHSA-h22j-f9xw-xjjm |
| NuGet | magick.net-q8-x86 | 14.15.0 | GHSA-h22j-f9xw-xjjm |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 7.1.2-27< 6.9.13-52 |
Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H