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LOW severity

ImageMagick: Policy Bypass in APNG encoder and delegates due to a missing checkGHSA-v3j6-27vc-7pw2

LOW

GHSA-v3j6-27vc-7pw2 is a low-severity (CVSS 3.3) CWE-59 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-2026-61858
Published
Updated
Affected
17 pkgs
Patched
17 / 17
Exploits
None indexed
Exploitation data as of Oct 23, 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-v3j6-27vc-7pw2.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs15th percentile — riskier than 15% of all scored CVEsHighest risk
0.00%0.25%0.50%0.75%0.2%0.2%0.2%0.2%Aug 26Oct 26Oct 26

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

How urgent is this, really

GHSA-v3j6-27vc-7pw2 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 395,249 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 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and external delegates due to missing validation checks. Attackers can write files to disallowed paths by bypassing configured policy restrictions through the APNG encoding process.

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 · 2 configurations
Application
imagemagickimagemagick
≥ 7.0.0-0 && < 7.1.2-26
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-v3j6-27vc-7pw2 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.

Frequently Asked Questions

Due to a missing check in the APNG encoder and external delegates it is possibly to bypass the policy and write to a disallowed path.
O3 Security · Impact-Aware SCA

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ImageMagick: Policy Bypass in APNG encoder and…