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MEDIUM severity

ImageMagick has infinite loop when writing IPTCTEXT leads to denial of service via crafted profileGHSA-v994-63cg-9wj3

MEDIUMFix: ImageMagick/ImageMagick@880057c

GHSA-v994-63cg-9wj3 is a medium-severity (CVSS 6.2) Uncontrolled Resource Consumption 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-2026-26066
Published
Updated
Affected
19 pkgs
Patched
19 / 19
Exploits
None indexed
Exploitation data as of Nov 10, 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-v994-63cg-9wj3.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs31th percentile — riskier than 31% of all scored CVEsHighest risk
0.00%0.29%0.58%0.87%0.0%0.4%May 26Sep 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

19 pkgs affected
.NETMagick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-OpenMP-arm64.NETMagick.NET-Q16-HDRI-OpenMP-x64.NETMagick.NET-Q16-HDRI-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64+11 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 is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a crafted profile contain invalid IPTC data may cause an infinite loop when writing it with IPTCTEXT. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Affected Packages

19 total 19 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetMagick.NET-Q16-AnyCPUall versions14.10.3dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.3
.NETNuGetMagick.NET-Q16-HDRI-AnyCPUall versions14.10.3dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.3
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-arm64all versions14.10.3dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.3
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-x64all versions14.10.3dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.3
.NETNuGetMagick.NET-Q16-HDRI-arm64all versions14.10.3dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.3
.NETNuGetMagick.NET-Q16-HDRI-x64all versions14.10.3dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.3

Affected Products

1 product · 2 configurations
Application
imagemagickimagemagick
≥ 7.0.0-0 && < 7.1.2-15
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 14.10.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-v994-63cg-9wj3 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

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 HatModerate

This MODERATE impact flaw in ImageMagick can lead to a denial of service. A crafted profile containing invalid IPTC data may cause an infinite loop when ImageMagick attempts to write it with IPTCTEXT. Red Hat Enterprise Linux systems utilizing ImageMagick to process untrusted image files are affected.

Workaround published by Red Hat
To mitigate this issue, restrict ImageMagick's processing of untrusted image files. If ImageMagick is used in an automated or server-side context, consider implementing sandboxing mechanisms to limit the resources available to the ImageMagick process when handling external input. This can help contain the impact of a denial of service.
Source: Red Hat security advisory for GHSA-v994-63cg-9wj3 (CC BY 4.0)

Frequently Asked Questions

A crafted profile contain invalid IPTC data may cause an infinite loop when writing it with `IPTCTEXT`.
O3 Security · Impact-Aware SCA

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ImageMagick has infinite loop when writing IPTCTEXT…