Junglewise Threat Intelligence

ImageMagick memory leak in MIFF encoder

Severity: low · CVSS 2.9 · Published 2026-07-24

Vendors: ImageMagick.

Executive brief

ImageMagick is a widely used software suite for displaying, converting, and editing image files. A flaw in how it handles specific image formats (MIFF) can cause the software to leak memory if a system error occurs during processing. While this is a low-risk issue, it could potentially lead to reduced system performance or application crashes if triggered repeatedly.

Technical details

A memory leak vulnerability (CWE-401) exists in the ImageMagick MIFF encoder. The issue is triggered when a memory allocation failure occurs during the encoding process, causing the product to fail to release previously allocated memory. This is a local attack vector with high complexity, as it requires the attacker to influence the environment to cause allocation failures. An exploit results in a minor impact on availability due to resource exhaustion. The vulnerability is patched in Magick.NET version 14.15.0.

Affected products

  • ImageMagick Magick.NET-Q16-AnyCPU < 14.15.0
  • ImageMagick Magick.NET-Q16-HDRI-AnyCPU < 14.15.0
  • ImageMagick Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.15.0
  • ImageMagick Magick.NET-Q16-HDRI-arm64 < 14.15.0
  • ImageMagick Magick.NET-Q16-HDRI-x64 < 14.15.0
  • ImageMagick Magick.NET-Q16-HDRI-x86 < 14.15.0
  • ImageMagick Magick.NET-Q16-OpenMP-arm64 < 14.15.0
  • ImageMagick Magick.NET-Q16-OpenMP-x64 < 14.15.0
  • ImageMagick Magick.NET-Q16-arm64 < 14.15.0
  • ImageMagick Magick.NET-Q16-x64 < 14.15.0
  • ImageMagick Magick.NET-Q16-x86 < 14.15.0
  • ImageMagick Magick.NET-Q8-AnyCPU < 14.15.0
  • ImageMagick Magick.NET-Q8-OpenMP-arm64 < 14.15.0
  • ImageMagick Magick.NET-Q8-OpenMP-x64 < 14.15.0
  • ImageMagick Magick.NET-Q8-arm64 < 14.15.0
  • ImageMagick Magick.NET-Q8-x64 < 14.15.0
  • ImageMagick Magick.NET-Q8-x86 < 14.15.0

Timeline

  • 2026-06-26: disclosed: Initial disclosure by dlemstra
  • 2026-07-24: advisory: GitHub Advisory published
  • 2026-07-24: patched: Magick.NET 14.15.0 released

References