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.NET
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Not in CISA KEV
LOW severity

ImageMagick has a memory leak in PNG encoder when writing a MNG imageGHSA-x928-4434-crqj

LOW

GHSA-x928-4434-crqj is a low-severity (CVSS 3.7) CWE-401 vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.

Also known asCVE-2026-56365
Published
Updated
Affected
18 pkgs
Patched
18 / 18
Exploits
None indexed
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-x928-4434-crqj.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs21th percentile — riskier than 21% of all scored CVEsHighest risk
0.00%0.26%0.52%0.78%0.3%0.3%Jul 26Oct 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

18 pkgs affected
.NETMagick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64+10 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.

Description

ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service.

Affected Packages

18 total 18 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetMagick.NET-Q16-AnyCPUall versions14.12.0dotnet add package Magick.NET-Q16-AnyCPU --version 14.12.0
.NETNuGetMagick.NET-Q16-HDRI-AnyCPUall versions14.12.0dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.12.0
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-arm64all versions14.12.0dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.12.0
.NETNuGetMagick.NET-Q16-HDRI-arm64all versions14.12.0dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.12.0
.NETNuGetMagick.NET-Q16-HDRI-x64all versions14.12.0dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.12.0
.NETNuGetMagick.NET-Q16-HDRI-x86all versions14.12.0dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.12.0

Affected Products

1 product · 2 configurations
Application
imagemagickimagemagick
≥ 7.0.0-0 && < 7.1.2-19
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Magick.NET-Q16-AnyCPU, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update Magick.NET-Q16-AnyCPU to 14.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-x928-4434-crqj is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow

This Low impact memory leak in ImageMagick's PNG encoder, when processing Multiple-image Network Graphics (MNG) images, could lead to a denial of service. While the flaw can exhaust system memory, it requires an application to process a specially crafted MNG image, limiting the attack surface in typical Red Hat…

Workaround published by Red Hat
To mitigate this use system controls (such as ulimit or container memory limits) to strictly cap the memory available to the ImageMagick process. This prevents a leak from crashing the wider system.
Source: Red Hat security advisory for GHSA-x928-4434-crqj (CC BY 4.0)

Frequently Asked Questions

When the PNG encoder fails to write an MNG image it can leak memory.
O3 Security · Impact-Aware SCA

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