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ImageMagick: Use-After-Free in MSL decoder. — CVE-2026-46523

GitHub · GitHub · CVE-2026-46523

ID
CVE-2026-46523
Date
Activity
Source
GitHub
Vendor
GitHub
Threat
medium
CVSS
6.2

Summary

A crafted MSL image can trigger a heap-use-after-free.

Product

nuget: Magick.NET-Q16-AnyCPU | nuget: Magick.NET-Q16-HDRI-AnyCPU | nuget: Magick.NET-Q16-HDRI-OpenMP-arm64 | nuget: Magick.NET-Q16-HDRI-OpenMP-x64 | nuget: Magick.NET-Q16-HDRI-arm64 | nuget: Magick.NET-Q16-HDRI-x64 | nuget: Magick.NET-Q16-HDRI-x86 | nuget: Magick.NET-Q16-OpenMP-arm64 | +10

What to do

General, cautious steps (verify details in the official source):

  • Review exposure and plan remediation based on risk and environment.
  • Identify affected product versions in your inventory and verify whether you are impacted.
  • Apply vendor patches/updates or recommended mitigations as soon as available.
  • Read the official advisory for exact affected versions and remediation steps.

Official advisory

Related advisories

GitHub GitHub 2026-W21