ImageMagick: Memory Leak in multiple coders that write raw pixel data

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

6.3 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2026-56368: 0.46% estimated exploitation activity in the next 30 days; percentile 39.96 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

A memory leak vulnerability exists in multiple coders that write raw pixel data where an object is not freed.

Published by the source

25 Feb 2026, 19:13 UTC

Last modified by the source

26 Aug 2026, 20:48 UTC

Source last checked

26 Oct 2026, 17:05 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-wfx3-6g53-9fgc

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# Patch Next advisory brief: CVE-2026-56368

Advisory: ImageMagick: Memory Leak in multiple coders that write raw pixel data
IDs: CVE-2026-56368, GHSA-wfx3-6g53-9fgc
Record: https://patchnext.com/advisories/cve-2026-56368 (revision 1, source checked 26 Oct 2026, 17:05 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: magick.net-q8-arm64 14.10.3; magick.net-q8-x86 14.10.3; magick.net-q16-hdri-anycpu 14.10.3; magick.net-q16-openmp-x64 14.10.3; magick.net-q16-anycpu 14.10.3; magick.net-q16-hdri-x86 14.10.3; magick.net-q16-hdri-openmp-arm64 14.10.3; magick.net-q16-hdri-arm64 14.10.3; magick.net-q16-x86 14.10.3; magick.net-q8-openmp-x64 14.10.3; magick.net-q16-hdri-openmp-x64 14.10.3; magick.net-q16-openmp-arm64 14.10.3; magick.net-q16-x64 14.10.3; magick.net-q8-x64 14.10.3; magick.net-q8-openmp-arm64 14.10.3; magick.net-q8-anycpu 14.10.3; magick.net-q16-openmp-x86 14.10.3; magick.net-q16-arm64 14.10.3; magick.net-q16-hdri-x64 14.10.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- NuGet magick.net-q8-arm64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q8-x86: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-hdri-anycpu: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-openmp-x64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-anycpu: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-hdri-x86: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-hdri-openmp-arm64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-hdri-arm64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-x86: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q8-openmp-x64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-hdri-openmp-x64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-openmp-arm64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-x64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q8-x64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q8-openmp-arm64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q8-anycpu: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-openmp-x86: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-arm64: affected < 14.10.3; fixed in 14.10.3
- NuGet magick.net-q16-hdri-x64: affected < 14.10.3; fixed in 14.10.3

## Suggested inspection (read-only)
- NuGet magick.net-q8-arm64: check the installed version with your package manager.
- NuGet magick.net-q8-x86: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-anycpu: check the installed version with your package manager.
- NuGet magick.net-q16-openmp-x64: check the installed version with your package manager.
- NuGet magick.net-q16-anycpu: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-x86: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-openmp-arm64: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-arm64: check the installed version with your package manager.
- NuGet magick.net-q16-x86: check the installed version with your package manager.
- NuGet magick.net-q8-openmp-x64: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-openmp-x64: check the installed version with your package manager.
- NuGet magick.net-q16-openmp-arm64: check the installed version with your package manager.
- NuGet magick.net-q16-x64: check the installed version with your package manager.
- NuGet magick.net-q8-x64: check the installed version with your package manager.
- NuGet magick.net-q8-openmp-arm64: check the installed version with your package manager.
- NuGet magick.net-q8-anycpu: check the installed version with your package manager.
- NuGet magick.net-q16-openmp-x86: check the installed version with your package manager.
- NuGet magick.net-q16-arm64: check the installed version with your package manager.
- NuGet magick.net-q16-hdri-x64: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on magick.net-q8-arm64, magick.net-q8-x86, magick.net-q16-hdri-anycpu, magick.net-q16-openmp-x64, magick.net-q16-anycpu, magick.net-q16-hdri-x86, magick.net-q16-hdri-openmp-arm64, magick.net-q16-hdri-arm64, magick.net-q16-x86, magick.net-q8-openmp-x64, magick.net-q16-hdri-openmp-x64, magick.net-q16-openmp-arm64, magick.net-q16-x64, magick.net-q8-x64, magick.net-q8-openmp-arm64, magick.net-q8-anycpu, magick.net-q16-openmp-x86, magick.net-q16-arm64, magick.net-q16-hdri-x64.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-wfx3-6g53-9fgc (GitHub-reviewed advisory GHSA-wfx3-6g53-9fgc lists affected ranges: NuGet magick.net-q16-anycpu >=0 =0 =0 =0 =0 =0 =0 =0 =0 <14.10.3; NuGet…)

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