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HIGH severity

CVE-2026-28691 — Magick.NET-Q16-AnyCPU

HIGH

CVE-2026-28691 is a high-severity (CVSS 7.5) CWE-252 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 an uninitialized pointer dereference in JBIG decoder

Also known asGHSA-wj8w-pjxf-9g4f
Published
Updated
Affected
19 pkgs
Patched
19 / 19
Exploits
None indexed
Exploitation data as of Oct 6, 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-2026-28691.

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk+0.30%
Lower risk than most CVEs50th percentile — riskier than 50% of all scored CVEsHighest risk
0.00%0.38%0.77%1.15%0.1%0.4%0.4%0.4%0.7%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2026-28691 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 383,485 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

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, an uninitialized pointer dereference vulnerability exists in the JBIG decoder due to a missing check. 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-2026-28691 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 HatImportant

This is an IMPORTANT vulnerability affecting ImageMagick, present in Red Hat Enterprise Linux 6 ELS and 7 ELS. An uninitialized pointer dereference in the JBIG decoder could lead to a denial of service when processing a specially crafted JBIG image.

Workaround published by Red Hat
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 CVE-2026-28691 (CC BY 4.0)
ProductFixed inAdvisory
Red Hat Enterprise Linux 7 Extended Lifecycle SupportImageMagick-0:6.9.10.68-15.el7_9RHSA-2026:6713
UbuntuHIGH
USN-8468-1Ubuntu

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, an uninitialized pointer dereference vulnerability exists in the JBIG decoder due to a missing check. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.
O3 Security · Impact-Aware SCA

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CVE-2026-28691: Magick.NET-Q16 — Fixed in 14.10.4