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Advisory record · GHSA-2gq3-ww97-wfjm

ImageMagick has a possible heap Use After Free vulnerability in its meta coder

CVSS 6.3 MediumEPSS 0.0032 · 25th percentile

Published by the GitHub Advisory Database at 25 Feb 2026, 19:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Magick.NET-Q16-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-x64NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-x86NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q16-OpenMP-x86NuGet<14.10.314.10.3
Magick.NET-Q16-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-AnyCPUNuGet<14.10.314.10.3
Magick.NET-Q8-OpenMP-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-OpenMP-x64NuGet<14.10.314.10.3
Magick.NET-Q8-arm64NuGet<14.10.314.10.3
Magick.NET-Q8-x64NuGet<14.10.314.10.3
Magick.NET-Q8-x86NuGet<14.10.314.10.3
Identifiers
GHSA-2gq3-ww97-wfjm · CVE-2026-56376
Weakness (CWE)
CWE-416
Tags
Published
25 Feb 2026
Updated
24 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Magick.NET-Q16 packages (including the AnyCPU, HDRI, and OpenMP variants for x64, x86 and arm64) before version 14.10.3 are affected by a heap use-after-free flaw in ImageMagick's meta coder. The source gives few details; it says the issue occurs when an allocation fails and a single byte is written through a stale pointer. Upgrade to version 14.10.3 or later.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.3 Medium 4.0 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0032, the 25th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:21 UTC First seen by agentprime
  2. 31 Oct 2026, 15:21 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.