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LOW severity

ImageMagick: Memory Leak when providing invalid options to the cliGHSA-cvhv-g4rq-3hmw

LOWFix: ImageMagick/ImageMagick@e3e6911

GHSA-cvhv-g4rq-3hmw is a low-severity (CVSS 3.3) 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-2026-66011
Published
Updated
Affected
17 pkgs
Patched
17 / 17
Exploits
None indexed
Exploitation data as of Oct 11, 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-cvhv-g4rq-3hmw.

EPSS Exploitation Probability

via FIRST.org ↗
0.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs3th percentile — riskier than 3% of all scored CVEsHighest risk
0.00%0.21%0.42%0.63%0.1%0.1%0.1%0.1%Aug 26Oct 26Oct 26

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

How urgent is this, really

GHSA-cvhv-g4rq-3hmw by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

17 pkgs affected
.NETMagick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64.NETMagick.NET-Q16-arm64+9 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 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources.

Affected Packages

17 total 17 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetMagick.NET-Q16-AnyCPUall versions14.15.0dotnet add package Magick.NET-Q16-AnyCPU --version 14.15.0
.NETNuGetMagick.NET-Q16-HDRI-AnyCPUall versions14.15.0dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.15.0
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-arm64all versions14.15.0dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.15.0
.NETNuGetMagick.NET-Q16-HDRI-x64all versions14.15.0dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.15.0
.NETNuGetMagick.NET-Q16-HDRI-x86all versions14.15.0dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.15.0
.NETNuGetMagick.NET-Q16-OpenMP-arm64all versions14.15.0dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.15.0

Affected Products

1 product · 1 configurations
Application
imagemagickimagemagick
< 7.1.2-27
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 14.15.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cvhv-g4rq-3hmw 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 vulnerability has a Low impact as it requires local system access and user interaction to exploit. An attacker must repeatedly supply malformed command-line arguments to the `magick` utility, leading to a memory leak and potential resource exhaustion.

Workaround published by Red Hat
To mitigate this issue, strictly sanitize inputs to prevent invalid CLI options from being passed to ImageMagick. Enforce process memory limits (via cgroups or ulimit) on ImageMagick executions to prevent potential memory exhaustion.
Source: Red Hat security advisory for GHSA-cvhv-g4rq-3hmw (CC BY 4.0)

Frequently Asked Questions

A memory leak is possible when invalid options are passed to the cli (`magick`)
O3 Security · Impact-Aware SCA

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