# CVE-2026-33908: ImageMagick uncontrolled recursion in DestroyXMLTree function

Source: https://junglewise.ai/threats/cve-2026-33908-imagemagick-uncontrolled-recursion-in-destroyxmltree-function  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-13. Updated: 2026-06-30  
License: CC BY 4.0 with a link back

CVE-2026-33908 · Severity: high · CVSS 7.5 · Published 2026-04-13

ImageMagick, a widely used tool for digital image processing, is vulnerable to a denial-of-service attack. By providing a specially crafted image file containing deeply nested XML data, an attacker can cause the software to crash. This could disrupt services that rely on ImageMagick for automated image handling, such as web applications or content management systems.

Technologies: [Dlemstra Magick.NET](https://junglewise.ai/threats/technologies/magick-net), [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-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: [Dlemstra](https://junglewise.ai/threats/vendors/dlemstra), [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2026-33908 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33908 being exploited in the wild.

**How severe is CVE-2026-33908?** High severity, with a CVSS score of 7.5, published 13 April 2026.

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

**Is there a fix for CVE-2026-33908?** 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-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-2026-33908 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-33908?** Check whether you run Dlemstra Magick.NET, Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (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-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 vulnerability exists in ImageMagick's MagickCore component within the `DestroyXMLTree()` function. The function performs recursive memory deallocation of XML trees without a defined depth limit. An attacker can exploit this by providing a maliciously crafted XML file with excessive nesting, leading to uncontrolled recursion (CWE-674) and stack memory exhaustion. This results in a crash of the application (Denial of Service). The vulnerability is reachable over the network without authentication if the application processes user-supplied images or XML data. The issue is resolved in ImageMagick versions 6.9.13-44 and 7.1.2-19, and Magick.NET 14.12.0.

## Affected products

- ImageMagick ImageMagick < 6.9.13-44, < 7.1.2-19
- dlemstra Magick.NET < 14.12.0
- Red Hat Red Hat Enterprise Linux 6 All versions
- Red Hat Red Hat Enterprise Linux 7 All versions

## Identifiers

- CVE-2026-33908
- GHSA-fwvm-ggf6-2p4x

## Timeline

- 2026-04-12: patched: ImageMagick 7.1.2-19 released
- 2026-04-13: advisory: Initial NVD publication

## References

- [https://github.com/ImageMagick/ImageMagick/commit/ccdc01180276aa2cb3d4a32a611aa4f417061cd8](https://github.com/ImageMagick/ImageMagick/commit/ccdc01180276aa2cb3d4a32a611aa4f417061cd8)
- [https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19](https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19)
- [https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fwvm-ggf6-2p4x](https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fwvm-ggf6-2p4x)
- [https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0](https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0)
- [https://access.redhat.com/security/cve/CVE-2026-33908](https://access.redhat.com/security/cve/CVE-2026-33908)
- [https://bugzilla.redhat.com/show_bug.cgi?id=2458041](https://bugzilla.redhat.com/show_bug.cgi?id=2458041)
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33908.json](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33908.json)

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