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
dotnet add package Magick.NET-Q16-AnyCPU --version 14.12.0 - Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later
dotnet add package Magick.NET-Q16-arm64 --version 14.12.0 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later
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
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
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
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
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
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
dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.12.0 - Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later
dotnet add package Magick.NET-Q16-x64 --version 14.12.0 - Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later
dotnet add package Magick.NET-Q16-x86 --version 14.12.0 - Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later
dotnet add package Magick.NET-Q8-AnyCPU --version 14.12.0 - Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later
dotnet add package Magick.NET-Q8-arm64 --version 14.12.0 - Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later
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
dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.12.0 - Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later
dotnet add package Magick.NET-Q8-x64 --version 14.12.0 - Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later
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/releases/tag/7.1.2-19
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-fwvm-ggf6-2p4x
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- https://access.redhat.com/security/cve/CVE-2026-33908
- https://bugzilla.redhat.com/show_bug.cgi?id=2458041
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33908.json