Vulnerability · Published Jul 8, 2026 · Assigned by VulnCheck
CVE-2026-56362ImageMagick - Heap-buffer-overflow Read in GetPixelIndex via OpenPixelCache Metadata Desynchronization
Low 3.3
In plain English
A low-severity out-of-bounds read 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 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image channel metadata before pixel cache memory allocation. Attackers can trigger memory and disk allocation failures to cause a heap-buffer-overflow read affecting any writer calling GetPixelIndex.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | imagemagick | 8:6.9.11.60+dfsg-1.6+deb12u8 | DEBIAN-CVE-2026-56362 |
| Debian:13 | imagemagick | 8:7.1.1.43+dfsg1-1+deb13u12 | DEBIAN-CVE-2026-56362 |
| Debian:14 | imagemagick | 8:7.1.2.15+dfsg1-1 | DEBIAN-CVE-2026-56362 |
| NuGet | magick.net-q16-anycpu | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-arm64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-hdri-anycpu | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-hdri-arm64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-hdri-openmp-arm64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-hdri-openmp-x64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-hdri-x64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-hdri-x86 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-openmp-arm64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-openmp-x64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-openmp-x86 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-x64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q16-x86 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q8-anycpu | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q8-arm64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q8-openmp-arm64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q8-openmp-x64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q8-x64 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| NuGet | magick.net-q8-x86 | 14.10.3 | GHSA-gq5v-qf8q-fp77 |
| Ubuntu:25.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-56362 |
| Ubuntu:26.10 | imagemagick | no fix listed | UBUNTU-CVE-2026-56362 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | 7.0.0 – before 7.1.2-15 |
| ImageMagick | ImageMagick | 0 – before 6.9.13-40 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:L