Advisory record · GHSA-wrhr-rf8j-r842

ImageMagick: Heap overflow in pcd decoder leads to out of bounds read.

CVSS 6.5 MediumEPSS 0.0045 · 39th percentile

Published by the GitHub Advisory Database at 12 Mar 2026, 14:04 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-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-Q16-x64NuGet<14.10.314.10.3
Magick.NET-Q16-x86NuGet<14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-x64NuGet<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-wrhr-rf8j-r842 · CVE-2026-26284
Weakness (CWE)
CWE-122 · CWE-125 · CWE-787
Published
12 Mar 2026
Updated
14 Mar 2026

Machine-written summary

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

The Magick.NET packages, including Magick.NET-Q16-AnyCPU and the other Q16 variants, are affected before version 14.10.3. A flaw in the pcd decoder's handling of Huffman-coded data can cause an out of bounds read, and the source gives few details on how an attacker would trigger it. 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
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0045, the 39th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:22 UTC First seen by agentprime
  2. 31 Oct 2026, 15:22 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.