Advisory record · GHSA-5vx3-wx4q-6cj8

ImageMagick has a NULL pointer dereference in MSL parser via <comment> tag before image load

CVSS 6.5 MediumEPSS 0.0047 · 41st percentile

Published by the GitHub Advisory Database at 21 Jan 2026, 01:06 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Magick.NET-Q8-x64NuGet<14.10.214.10.2
Magick.NET-Q8-arm64NuGet<14.10.214.10.2
Magick.NET-Q8-x86NuGet<14.10.214.10.2
Magick.NET-Q8-OpenMP-x64NuGet<14.10.214.10.2
Magick.NET-Q8-OpenMP-arm64NuGet<14.10.214.10.2
Magick.NET-Q16-x64NuGet<14.10.214.10.2
Magick.NET-Q16-arm64NuGet<14.10.214.10.2
Magick.NET-Q16-x86NuGet<14.10.214.10.2
Magick.NET-Q16-OpenMP-x64NuGet<14.10.214.10.2
Magick.NET-Q16-OpenMP-arm64NuGet<14.10.214.10.2
Magick.NET-Q16-OpenMP-x86NuGet<14.10.214.10.2
Magick.NET-Q16-HDRI-x64NuGet<14.10.214.10.2
Magick.NET-Q16-HDRI-arm64NuGet<14.10.214.10.2
Magick.NET-Q16-HDRI-x86NuGet<14.10.214.10.2
Magick.NET-Q16-HDRI-OpenMP-x64NuGet<14.10.214.10.2
Magick.NET-Q16-HDRI-OpenMP-arm64NuGet<14.10.214.10.2
Magick.NET-Q8-AnyCPUNuGet<14.10.214.10.2
Magick.NET-Q16-AnyCPUNuGet<14.10.214.10.2
Magick.NET-Q16-HDRI-AnyCPUNuGet<14.10.214.10.2
Identifiers
GHSA-5vx3-wx4q-6cj8 · CVE-2026-23952
Weakness (CWE)
CWE-476
Published
21 Jan 2026
Updated
10 Sept 2026

Machine-written summary

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

Magick.NET-Q8 and Magick.NET-Q16 packages before 14.10.2 have a NULL pointer dereference in the MSL parser when a comment tag precedes any image load. An attacker who can make an application process a crafted MSL file can crash it, causing denial of service. Upgrade to 14.10.2.

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:L/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0047, the 41st 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.