Junglewise Threat Intelligence

CVE-2026-46520: ImageMagick heap out-of-bounds write in IPL decoder

CVE-2026-46520 · Severity: high · CVSS 7.5 · Published 2026-06-10

Technologies: Magick.NET-Q16-OpenMP-arm64 (NuGet), Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet), Magick.NET-Q8-x86 (NuGet), Magick.NET-Q8-AnyCPU (NuGet), Magick.NET-Q16-arm64 (NuGet), Magick.NET-Q16-OpenMP-x64 (NuGet), Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet), Magick.NET-Q16-HDRI-arm64 (NuGet), Magick.NET-Q16-HDRI-x86 (NuGet), Magick.NET-Q16-HDRI-x64 (NuGet), Magick.NET-Q8-OpenMP-arm64 (NuGet), ImageMagick, Magick.NET-Q8-OpenMP-x64 (NuGet), Magick.NET-Q16-x64 (NuGet), Magick.NET-Q8-arm64 (NuGet), Magick.NET-Q8-x64 (NuGet), Magick.NET-Q16-x86 (NuGet), Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet). Vendors: NuGet, ImageMagick.

Executive brief

ImageMagick is a widely used software library for processing and editing digital images. A flaw in how it handles certain image files could allow an attacker to crash the application or service using the library. This could lead to a denial-of-service, disrupting business operations that rely on automated image processing.

Technical details

A heap-based buffer overflow (CWE-122) and out-of-bounds write (CWE-787) exists in ImageMagick's IPL decoder. The vulnerability is triggered when the software attempts to read multiple images with mismatched dimensions, leading to memory corruption. An attacker can exploit this over a network without authentication or user interaction by providing a specially crafted image file. The primary impact is a crash of the process (Denial of Service). The issue is resolved in versions 6.9.13-48 and 7.1.2-23.

Affected products

  • ImageMagick ImageMagick < 6.9.13-48, < 7.1.2-23

Timeline

  • 2026-05-17: advisory: GitHub Security Advisory published
  • 2026-06-10: disclosed: CVE published to NVD

References

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