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MEDIUM severity

CVE-2026-28690 — Magick.NET-Q16-AnyCPU

MEDIUM

CVE-2026-28690 is a medium-severity (CVSS 6.9) CWE-121 vulnerability in Magick.NET-Q16-AnyCPU. A fix is available for Magick.NET-Q16-AnyCPU — see the affected versions and patch details below.

ImageMagick has a stack write buffer overflow in MNG encoder

Also known asGHSA-7h7q-j33q-hvpf
Published
Updated
Affected
19 pkgs
Patched
19 / 19
Exploits
None indexed
Exploitation data as of Nov 3, 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 CVE-2026-28690.

EPSS Exploitation Probability

via FIRST.org ↗
0.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs1th percentile — riskier than 1% of all scored CVEsHighest risk
0.00%0.21%0.42%0.63%0.0%0.1%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-arm64.NETMagick.NET-Q16-HDRI-x64.NETMagick.NET-Q16-HDRI-x86.NETMagick.NET-Q16-OpenMP-arm64.NETMagick.NET-Q16-OpenMP-x64+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 7.1.2-16 and 6.9.13-41, a stack buffer overflow vulnerability exists in the MNG encoder. There is a bounds checks missing that could corrupting the stack with attacker-controlled data. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

Affected Packages

19 total 19 fixed
EcosystemPackageVulnerable rangeFix
.NETNuGetMagick.NET-Q16-AnyCPUall versions14.10.4dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.4
.NETNuGetMagick.NET-Q16-HDRI-AnyCPUall versions14.10.4dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.4
.NETNuGetMagick.NET-Q16-HDRI-OpenMP-arm64all versions14.10.4dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.4
.NETNuGetMagick.NET-Q16-HDRI-arm64all versions14.10.4dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.4
.NETNuGetMagick.NET-Q16-HDRI-x64all versions14.10.4dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.4
.NETNuGetMagick.NET-Q16-HDRI-x86all versions14.10.4dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.4

Affected Products

1 product · 2 configurations
Application
imagemagickimagemagick
≥ 7.0.0-0 && < 7.1.2-16
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 14.10.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-28690 is resolved across your whole dependency graph.

  3. Workarounds

    Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.

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

To exploit this issue, an attacker needs to convince a user to process a specially crafted file that makes ImageMagick use the MNG encoder. Default Red Hat Enterprise Linux security features, including SELinux enforcement, Address Space Layout Randomization (ASLR) and NX (No-Execute) stack protection, significantly…

Workaround published by Red Hat
To mitigate this vulnerability, disable the vulnerable encoder by adding the following line to the ImageMagick policy.xml file, typically located in the directory /etc/ImageMagick-7/, /etc/ImageMagick-6/ or /etc/ImageMagick/: ~~~ <policy domain="coder" rights="none" pattern="MNG" /> ~~~ To reduce the risk of exploitation, avoid processing untrusted MNG files with ImageMagick. If ImageMagick is deployed in a way that it processes files from untrusted sources automatically, consider running the application inside a container or a restricted sandbox environment to limit the potential security impact.
Source: Red Hat security advisory for CVE-2026-28690 (CC BY 4.0)

Frequently Asked Questions

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a stack buffer overflow vulnerability exists in the MNG encoder. There is a bounds checks missing that could corrupting the stack with attacker-controlled data. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.
O3 Security · Impact-Aware SCA

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CVE-2026-28690: Magick.NET-Q16 — Fixed in 14.10.4