CVE-2026-56376

Low

Description

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.

SeverityLow
CVSS3.7
Exploit probability—
ProductImagemagick
PublishedJun 23, 2026
First seenJun 23, 2026

How to fix

Update
  • imagemagick imagemagick6.9.13-40, 7.1.2-15 or later
  • Magick.NET-Q16-AnyCPU14.10.3 or later
  • Magick.NET-Q16-HDRI-AnyCPU14.10.3 or later
  • Magick.NET-Q16-HDRI-OpenMP-arm6414.10.3 or later
  • Magick.NET-Q16-HDRI-OpenMP-x6414.10.3 or later
  • Magick.NET-Q16-HDRI-arm6414.10.3 or later
  • Magick.NET-Q16-HDRI-x6414.10.3 or later
  • Magick.NET-Q16-HDRI-x8614.10.3 or later
  • Magick.NET-Q16-OpenMP-arm6414.10.3 or later
  • Magick.NET-Q16-OpenMP-x6414.10.3 or later
  • Magick.NET-Q16-OpenMP-x8614.10.3 or later
  • Magick.NET-Q16-arm6414.10.3 or later

Affected products

ProductAffected versionsFixed in
imagemagick imagemagickv < 6.9.13-40, 7.0.0-0 ≤ v < 7.1.2-156.9.13-40, 7.1.2-15
Magick.NET-Q16-AnyCPUNuGetv < 14.10.314.10.3
Magick.NET-Q16-HDRI-AnyCPUNuGetv < 14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64NuGetv < 14.10.314.10.3
Magick.NET-Q16-HDRI-OpenMP-x64NuGetv < 14.10.314.10.3
Magick.NET-Q16-HDRI-arm64NuGetv < 14.10.314.10.3
Magick.NET-Q16-HDRI-x64NuGetv < 14.10.314.10.3
Magick.NET-Q16-HDRI-x86NuGetv < 14.10.314.10.3
Magick.NET-Q16-OpenMP-arm64NuGetv < 14.10.314.10.3
Magick.NET-Q16-OpenMP-x64NuGetv < 14.10.314.10.3
Magick.NET-Q16-OpenMP-x86NuGetv < 14.10.314.10.3
Magick.NET-Q16-arm64NuGetv < 14.10.314.10.3
Magick.NET-Q8-AnyCPUNuGetv < 14.10.314.10.3
Magick.NET-Q8-OpenMP-arm64NuGetv < 14.10.314.10.3
Magick.NET-Q8-OpenMP-x64NuGetv < 14.10.314.10.3
Magick.NET-Q8-arm64NuGetv < 14.10.314.10.3
Magick.NET-Q8-x64NuGetv < 14.10.314.10.3
Magick.NET-Q8-x86NuGetv < 14.10.314.10.3

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