CVE-2026-33908 — ImageMagick has a Stack Overflow in...

HIGH

ImageMagick has a Stack Overflow in DestroyXMLTree()

Published April 14, 2026Updated April 21, 2026Source: osv

Summary

Magick frees the memory of the XML tree via the `DestroyXMLTree` function; however, this process is executed recursively with no depth limit imposed. When magick processes an XML file with deeply nested structures, it will exhaust the stack memory, resulting in a Denial of Service (DoS) attack.

Advisory Timeline

First published April 14, 2026 (181 days ago).
Last revised April 21, 2026 — 7 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q8-arm64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q8-x64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-x64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-arm64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-x86 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-AnyCPU to 14.12.0 or later

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

NuGet

Update Magick.NET-Q8-AnyCPU to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q8-x86 to 14.12.0 or later

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

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.12.0 or later

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

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (17)

Affects 1 ecosystem: nuget (17).

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+54 more)	14.12.0
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+106 more)	14.12.0
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+54 more)	14.12.0
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+106 more)	14.12.0
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+225 more)	14.12.0
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+54 more)	14.12.0
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+225 more)	14.12.0
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.12.0
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+54 more)	14.12.0
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+54 more)	14.12.0
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.12.0
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+225 more)	14.12.0
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+209 more)	14.12.0
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+209 more)	14.12.0
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+54 more)	14.12.0
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+225 more)	14.12.0
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.12.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-674
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Frequently Asked Questions

What is CVE-2026-33908?: ImageMagick has a Stack Overflow in DestroyXMLTree() This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2026-33908?: CVE-2026-33908 affects Magick.NET-Q8-arm64, Magick.NET-Q16-OpenMP-x64 and Magick.NET-Q16-OpenMP-arm64 (and 14 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-33908 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-fwvm-ggf6-2p4x

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