Is CVE-2026-56376 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-56376 being exploited in the wild.

How severe is CVE-2026-56376?

Low severity, with a CVSS score of 3.7, published 23 June 2026.

Which products and versions are affected?

Magick.NET-Q16-AnyCPU (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-arm64 (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-arm64 (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; and 13 more.

Is there a fix for CVE-2026-56376?

Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-56376 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-56376?

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-2026-56376: ImageMagick heap use-after-free in meta coder

Q: Is there a fix for CVE-2026-56376?

Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-56376 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-56376?

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-2026-56376 · Severity: low · CVSS 3.7 · Published 2026-06-23

ImageMagick is a widely used software suite for creating, editing, and converting digital images. A flaw in how it handles memory during image processing could allow an attacker to crash the application by providing a specially crafted image file. This could lead to a service outage for websites or applications that use ImageMagick to process user-uploaded content.

Quick answers

Is CVE-2026-56376 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-56376 being exploited in the wild.
How severe is CVE-2026-56376?: Low severity, with a CVSS score of 3.7, published 23 June 2026.
Which products and versions are affected?: Magick.NET-Q16-AnyCPU (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-arm64 (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-arm64 (NuGet) < 14.10.3, ECOSYSTEM:introduced=0,fixed=14.10.3; and 13 more.
Is there a fix for CVE-2026-56376?: Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56376 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-56376?: 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 14.10.3 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.3

Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.10.3

Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.3

Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.3

Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.3

Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.3

Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.3

Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.3

Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.3

Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.3

Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.3

Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.3

Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.10.3

Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.3

Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.3

Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q8-x64 --version 14.10.3

Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later

dotnet add package Magick.NET-Q8-x86 --version 14.10.3

Technical details

A heap use-after-free vulnerability exists in ImageMagick's meta coder. The issue occurs when a memory allocation fails, leading to a single-byte write to a stale pointer. An attacker can exploit this by submitting a specially crafted image file for processing. While the attack complexity is high and the impact is limited to a denial of service (DoS) via application crash, it can be triggered remotely without user interaction. The vulnerability is addressed in versions 7.1.2-15 and 6.9.13-40.

Affected products

ImageMagick ImageMagick < 7.1.2-15, < 6.9.13-40

Identifiers

CVE-2026-56376
GHSA-2gq3-ww97-wfjm

Timeline

2026-02-23: advisory: Initial GitHub Security Advisory published
2026-06-23: disclosed: CVE published to NVD

References

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