# CVE-2026-56372: ImageMagick heap buffer overflow in magnify operation

Source: https://junglewise.ai/threats/cve-2026-56372-imagemagick-heap-buffer-overflow-in-magnify-operation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-11. Updated: 2026-07-11  
License: CC BY 4.0 with a link back

CVE-2026-56372 · Severity: low · CVSS 3.3 · Published 2026-07-11

ImageMagick, a widely used software suite for displaying and editing images, is affected by a memory handling flaw. An attacker could provide a specially crafted image or command that uses an invalid magnification method, potentially causing the application to crash or leak small amounts of memory. This could lead to a temporary disruption of services that process user-uploaded images.

Technologies: [Magick.NET-Q16-AnyCPU (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-anycpu), [Magick.NET-Q16-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-arm64), [Magick.NET-Q16-HDRI-AnyCPU (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-anycpu), [Magick.NET-Q16-HDRI-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-arm64), [Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-openmp-arm64), [Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-openmp-x64), [Magick.NET-Q16-HDRI-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-x64), [Magick.NET-Q16-HDRI-x86 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-hdri-x86), [Magick.NET-Q16-OpenMP-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-openmp-arm64), [Magick.NET-Q16-OpenMP-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-openmp-x64), [Magick.NET-Q16-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-x64), [Magick.NET-Q16-x86 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q16-x86), [Magick.NET-Q8-AnyCPU (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-anycpu), [Magick.NET-Q8-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-arm64), [Magick.NET-Q8-OpenMP-arm64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-openmp-arm64), [Magick.NET-Q8-OpenMP-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-openmp-x64), [Magick.NET-Q8-x64 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-x64), [Magick.NET-Q8-x86 (NuGet)](https://junglewise.ai/threats/technologies/magick-net-q8-x86). Vendors: [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2026-56372 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-56372 being exploited in the wild.

**How severe is CVE-2026-56372?** Low severity, with a CVSS score of 3.3, published 11 July 2026.

**Which products and versions are affected?** Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.12.0; and 14 more.

**Is there a fix for CVE-2026-56372?** Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-56372 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-56372?** 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 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-AnyCPU --version 14.12.0
  ```

- Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-arm64 --version 14.12.0
  ```

- Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.12.0
  ```

- Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.12.0
  ```

- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.12.0
  ```

- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.12.0
  ```

- Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.12.0
  ```

- Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.12.0
  ```

- Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.12.0
  ```

- Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.12.0
  ```

- Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-x64 --version 14.12.0
  ```

- Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q16-x86 --version 14.12.0
  ```

- Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q8-AnyCPU --version 14.12.0
  ```

- Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q8-arm64 --version 14.12.0
  ```

- Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.12.0
  ```

- Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.12.0
  ```

- Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q8-x64 --version 14.12.0
  ```

- Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later

  ```sh
  dotnet add package Magick.NET-Q8-x86 --version 14.12.0
  ```


## Technical details

A heap-based buffer overflow (out-of-bounds read) exists in ImageMagick's magnify operation. The vulnerability is triggered when the software encounters an unrecognized 'magnify:method' value, leading to a read of size 4 beyond the allocated heap buffer. The attack vector is local and requires user interaction, such as a user being tricked into processing a malicious image file. Successful exploitation can result in a denial of service (application crash) or potential exposure of sensitive memory contents. The issue is addressed in version 7.1.2-19.

## Affected products

- ImageMagick ImageMagick < 7.1.2-19

## Identifiers

- CVE-2026-56372
- GHSA-8vfj-q2cp-5m5j

## Timeline

- 2026-04-13: advisory: GitHub Security Advisory published
- 2026-07-11: disclosed: NVD publication date
- 2026-07-11: patched: Fix confirmed in version 7.1.2-19

## References

- [https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8vfj-q2cp-5m5j](https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8vfj-q2cp-5m5j)
- [https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-read-via-unrecognized-magnify-method](https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-read-via-unrecognized-magnify-method)

## Related threats

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- [ImageMagick heap buffer overflow in fx operation](https://junglewise.ai/threats/cve-2026-62363-imagemagick-heap-buffer-overflow-in-fx-operation)
- [ImageMagick heap buffer overwrite in morphology operation](https://junglewise.ai/threats/cve-2026-62343-imagemagick-heap-buffer-overwrite-in-morphology-operation)
- [ImageMagick memory leak in magick CLI via invalid options](https://junglewise.ai/threats/cve-2026-66011-imagemagick-memory-leak-in-magick-cli-via-invalid-options)
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