Is CVE-2026-61870 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-61870 being exploited in the wild.

How severe is CVE-2026-61870?

Low severity, with a CVSS score of 3.1, published 11 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-2026-61870?

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-2026-61870 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-61870?

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.

CVE-2026-61870: ImageMagick memory leak in VIFF encoder

CVE-2026-61870 · Severity: low · CVSS 3.1 · Published 2026-07-11

ImageMagick, a widely used software suite for editing and converting images, is affected by a memory management flaw in its VIFF image encoder. By providing a specially crafted image file, an attacker could cause the software to leak memory, potentially leading to a system slowdown or crash. This impact is generally limited to a denial-of-service condition on the machine processing the image.

Quick answers

Is CVE-2026-61870 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-61870 being exploited in the wild.
How severe is CVE-2026-61870?: Low severity, with a CVSS score of 3.1, published 11 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-2026-61870?: 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-2026-61870 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-61870?: 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 vulnerability (CWE-401) exists in ImageMagick's VIFF encoder. The flaw occurs when a memory allocation failure is encountered during the encoding process, resulting in the software failing to release previously allocated memory. An attacker can exploit this by providing a specially crafted VIFF image designed to trigger these allocation failures. Successful exploitation leads to gradual memory exhaustion and a local denial-of-service (DoS) condition. The vulnerability is addressed in versions 7.1.2-26 and 6.9.13-51.

Affected products

ImageMagick ImageMagick < 7.1.2-26
ImageMagick ImageMagick < 6.9.13-51

Identifiers

CVE-2026-61870
GHSA-m596-67p7-69wh

Timeline

2026-06-26: advisory: GitHub Security Advisory published
2026-07-11: disclosed: CVE published to NVD

References

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