ImageMagick Magick.NET policy bypass via improper link resolution

Severity: medium · CVSS 4.7 · Published 2026-07-24

ImageMagick is a popular software suite used for creating, editing, and converting images. A vulnerability in its .NET library could allow a local user to bypass security policies and access files they should not be able to see. This could lead to the unauthorized exposure of sensitive data stored on the system.

Quick answers

Is This vulnerability exploited in the wild?
No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.
How severe is This vulnerability?
Medium severity, with a CVSS score of 4.7, published 24 July 2026.
Which products and versions are affected?
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; and 13 more.
Is there a fix for This vulnerability?
A patch was published on 2026-06-26: Magick.NET 14.15.0 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is This vulnerability attacked?
It is attacked with local access, in a software library.
Am I affected?
Check whether anything you run is named in the advisory. 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.

Technical details

A policy bypass vulnerability exists in ImageMagick's Magick.NET library due to an incomplete fix for a previous security issue. The flaw involves improper link resolution (CWE-59) and a time-of-check time-of-use (TOCTOU) race condition (CWE-367). A local attacker with low privileges can exploit these weaknesses to bypass authorization checks and access unintended resources. The vulnerability is triggered when the product attempts to access a file without properly preventing the filename from resolving to a symbolic link or shortcut. This issue is addressed 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,versions: 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: patched: Magick.NET 14.15.0 released
  • 2026-07-24: advisory: GitHub Advisory published

References

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