CVE-2026-46557: ImageMagick stack overflow in fx operation

CVE-2026-46557 · Severity: medium · CVSS 6.2 · Published 2026-06-10

ImageMagick is a widely used open-source tool for creating, editing, and converting digital images. A vulnerability in its image processing logic allows a specially crafted file or command to crash the application. This can lead to a denial-of-service, potentially disrupting automated workflows or web services that rely on ImageMagick to process user-uploaded images.

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-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-2026-46557 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-46557 being exploited in the wild.
How severe is CVE-2026-46557?
Medium severity, with a CVSS score of 6.2, published 10 June 2026.
Which products and versions are affected?
Magick.NET-Q16-AnyCPU (NuGet) < 14.13.1, ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-arm64 (NuGet) < 14.13.1, ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.13.1, ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-HDRI-arm64 (NuGet) < 14.13.1, ECOSYSTEM:introduced=0,fixed=14.13.1; and 14 more.
Is there a fix for CVE-2026-46557?
Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.13.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-46557 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-46557?
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 14.13.1 or later
    dotnet add package Magick.NET-Q16-AnyCPU --version 14.13.1
  • Magick.NET-Q16-arm64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-arm64 --version 14.13.1
  • Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.13.1
  • Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.13.1
  • Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.13.1
  • Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.13.1
  • Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.13.1
  • Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.13.1
  • Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.13.1
  • Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.13.1
  • Magick.NET-Q16-x64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-x64 --version 14.13.1
  • Magick.NET-Q16-x86 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q16-x86 --version 14.13.1
  • Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q8-AnyCPU --version 14.13.1
  • Magick.NET-Q8-arm64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q8-arm64 --version 14.13.1
  • Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.13.1
  • Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.13.1
  • Magick.NET-Q8-x64 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q8-x64 --version 14.13.1
  • Magick.NET-Q8-x86 (NuGet): upgrade to 14.13.1 or later
    dotnet add package Magick.NET-Q8-x86 --version 14.13.1

Technical details

A stack-based buffer overflow vulnerability exists in ImageMagick's 'fx' operation due to uncontrolled recursion (CWE-674). The software fails to implement a proper depth check when processing arguments, allowing an attacker to trigger a stack overflow. This vulnerability is exploitable locally by providing a specially crafted argument to the affected component. Successful exploitation results in a crash of the application, leading to a denial-of-service (DoS) condition. The issue is resolved in ImageMagick version 7.1.2-23.

Affected products

  • ImageMagick ImageMagick < 7.1.2-23

Identifiers

  • CVE-2026-46557
  • GHSA-rcr6-g7jc-f57g

Timeline

  • 2026-05-17: advisory: GitHub advisory published by maintainers
  • 2026-06-10: disclosed: CVE published to NVD
  • 2026-06-10: patched: Fix confirmed in version 7.1.2-23

References

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