CVE-2026-45359: ImageMagick heap buffer over-read in connected components operation

CVE-2026-45359 · Severity: medium · CVSS 5.7 · Published 2026-06-10

ImageMagick is a widely used open-source tool for editing and converting digital images. A flaw in how it handles specific image processing commands could allow an attacker to read sensitive information from the computer's memory or cause the application to crash. This could lead to data exposure or service disruptions in environments that process user-supplied 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-2026-45359 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-45359 being exploited in the wild.
How severe is CVE-2026-45359?
Medium severity, with a CVSS score of 5.7, 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-2026-45359?
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-2026-45359 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-45359?
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 heap buffer over-read vulnerability exists in ImageMagick's connected components operation due to improper validation of the 'connected-components:keep-top' value. The root cause is a failure to properly validate array indices (CWE-129), leading to an out-of-bounds read (CWE-125). An attacker with local access could exploit this by providing a specially crafted value to the image processing routine. Successful exploitation could allow the attacker to read sensitive data from the heap or cause a denial-of-service (DoS) through an application crash. The issue is resolved in versions 6.9.13-48 and 7.1.2-22.

Affected products

  • ImageMagick ImageMagick < 6.9.13-48, < 7.1.2-22

Identifiers

  • CVE-2026-45359
  • GHSA-vhrh-72hq-w8m7

Timeline

  • 2026-05-16: advisory: GitHub Security Advisory published
  • 2026-06-10: disclosed: CVE published to NVD

References

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