ImageMagick has an integer overflow in despeckle operation causing a heap buffer overflow on 32-bit buildsGHSA-26qp-ffjh-2x4v
MEDIUMFix: ImageMagick/ImageMagick@bcd8519GHSA-26qp-ffjh-2x4v is a medium-severity (CVSS 5.1) CWE-190 vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.
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-26qp-ffjh-2x4v.
EPSS Exploitation Probability
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
Magick.NET-Q16-AnyCPU.NETMagick.NET-Q16-HDRI-AnyCPU.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-x86.NETMagick.NET-Q8-AnyCPU.NETMagick.NET-Q8-x86Real-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. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| .NETNuGet | Magick.NET-Q16-AnyCPU | all versions | 14.12.0dotnet add package Magick.NET-Q16-AnyCPU --version 14.12.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-AnyCPU | all versions | 14.12.0dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.12.0 |
| .NETNuGet | Magick.NET-Q16-HDRI-x86 | all versions | 14.12.0dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.12.0 |
| .NETNuGet | Magick.NET-Q16-x86 | all versions | 14.12.0dotnet add package Magick.NET-Q16-x86 --version 14.12.0 |
| .NETNuGet | Magick.NET-Q8-AnyCPU | all versions | 14.12.0dotnet add package Magick.NET-Q8-AnyCPU --version 14.12.0 |
| .NETNuGet | Magick.NET-Q8-x86 | all versions | 14.12.0dotnet add package Magick.NET-Q8-x86 --version 14.12.0 |
Affected Products
imagemagickimagemagickDetection & mitigation playbook
Open-source dependencyDetect
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.
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-26qp-ffjh-2x4v is resolved across your whole dependency graph.
Workarounds
Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable.
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.
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.Source: Red Hat security advisory for GHSA-26qp-ffjh-2x4v (CC BY 4.0)
Frequently Asked Questions
Is GHSA-26qp-ffjh-2x4v in your dependencies?
Find it across NuGet, including transitive dependencies.