CVE-2026-61863: ImageMagick memory leak in TIFF encoder

CVE-2026-61863 · Severity: low · CVSS 3.1 · Published 2026-07-15

ImageMagick, a widely used software suite for displaying and converting images, contains a minor flaw in how it handles TIFF files. Under specific conditions where the system cannot create temporary files, the software fails to release a small amount of memory. While this is unlikely to cause a major outage, repeated occurrences could theoretically lead to a gradual slowdown of the affected system.

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-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-2026-61863 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-61863 being exploited in the wild.
How severe is CVE-2026-61863?
Low severity, with a CVSS score of 3.1, published 15 July 2026.
Which products and versions are affected?
Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.15.0; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.15.0; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.15.0; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.15.0; and 13 more.
Is there a fix for CVE-2026-61863?
Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.15.0 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.15.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-61863 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-61863?
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 14.15.0 or later
    dotnet add package Magick.NET-Q16-AnyCPU --version 14.15.0
  • Magick.NET-Q16-arm64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-arm64 --version 14.15.0
  • Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.15.0
  • Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.15.0
  • Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.15.0
  • Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.15.0
  • Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.15.0
  • Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.15.0
  • Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.15.0
  • Magick.NET-Q16-x64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-x64 --version 14.15.0
  • Magick.NET-Q16-x86 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q16-x86 --version 14.15.0
  • Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q8-AnyCPU --version 14.15.0
  • Magick.NET-Q8-arm64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q8-arm64 --version 14.15.0
  • Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.15.0
  • Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.15.0
  • Magick.NET-Q8-x64 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q8-x64 --version 14.15.0
  • Magick.NET-Q8-x86 (NuGet): upgrade to 14.15.0 or later
    dotnet add package Magick.NET-Q8-x86 --version 14.15.0

Technical details

A memory leak (CWE-401) exists in the TIFF encoder of ImageMagick. The vulnerability is triggered when the application attempts to encode a TIFF image but fails to create a necessary temporary file; in this error path, previously allocated memory is not properly released. The attack complexity is high as it requires a specific local environment state (failure of temporary file creation). An attacker with local access could potentially cause a minor denial-of-service through memory exhaustion over a long period of repeated triggers. The issue is resolved in versions 7.1.2-26 and 6.9.13-51.

Affected products

  • ImageMagick ImageMagick < 7.1.2-26, < 6.9.13-51

Identifiers

  • CVE-2026-61863
  • GHSA-6vxp-gfwf-hcr9

Timeline

  • 2026-06-26: advisory: GitHub Security Advisory published
  • 2026-07-15: disclosed: NVD publication date

References

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