CVE-2026-56364: ImageMagick memory leak in LoadOpenCLDeviceBenchmark

CVE-2026-56364 · Severity: low · CVSS 3.1 · Published 2026-06-30

ImageMagick is a widely used software suite for editing and processing digital images. A vulnerability in how it handles hardware acceleration settings could allow a user with high-level system access to cause the software to consume excessive memory. This could eventually lead to a system slowdown or a service outage, though it requires specific local access to exploit.

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

Quick answers

Is CVE-2026-56364 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-56364 being exploited in the wild.
How severe is CVE-2026-56364?
Low severity, with a CVSS score of 3.1, published 30 June 2026.
Which products and versions are affected?
Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.2; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.2; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.2; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.2; and 15 more.
Is there a fix for CVE-2026-56364?
Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.2 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56364 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-56364?
Check whether you run Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.2
  • Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-arm64 --version 14.10.2
  • Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.2
  • Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.2
  • Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.2
  • Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.2
  • Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.2
  • Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.2
  • Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.2
  • Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.2
  • Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.2
  • Magick.NET-Q16-x64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-x64 --version 14.10.2
  • Magick.NET-Q16-x86 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q16-x86 --version 14.10.2
  • Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.2
  • Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q8-arm64 --version 14.10.2
  • Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.2
  • Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.2
  • Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q8-x64 --version 14.10.2
  • Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.2 or later
    dotnet add package Magick.NET-Q8-x86 --version 14.10.2

Technical details

A memory leak (CWE-401) exists in MagickCore/opencl.c within the LoadOpenCLDeviceBenchmark() function. The vulnerability is triggered when the parser encounters malformed OpenCL device profile XML files containing unclosed <device> elements. While the function allocates memory for string members such as platform_name and vendor_name, it only releases them if a proper closing tag is parsed. An attacker with write access to the OpenCL cache directory (~/.cache/ImageMagick/) can plant a malicious XML file to cause repeated memory leaks during initialization, leading to a denial of service. This issue is resolved in version 7.1.2-13.

Affected products

  • ImageMagick ImageMagick < 7.1.2-13

Identifiers

  • CVE-2026-56364
  • GHSA-qp59-x883-77qv

Timeline

  • 2026-01-19: advisory: GitHub Security Advisory published
  • 2026-06-30: disclosed: NVD publication date

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.