CVE-2026-30931

MEDIUM

ImageMagick has heap-based buffer overflow in UHDR encoder

Published March 12, 2026Updated March 23, 2026Source: osv

Summary

A heap-based buffer overflow in the UHDR encoder can happen due to truncation of a value and it would allow an out of bounds write. ``` ================================================================ ==2158399==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x521000039500 at pc 0x562a4a42f968 bp 0x7ffcca4ed6c0 sp 0x7ffcca4ed6b0 WRITE of size 1 at 0x521000039500 thread T0 ```

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q16-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-OpenMP-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.4

NuGet

Update Magick.NET-Q8-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.4

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q8-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.4

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.4

NuGet

Update Magick.NET-Q8-AnyCPU to 14.10.4 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.4

NuGet

Update Magick.NET-Q8-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q8-x86 --version 14.10.4

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-AnyCPU to 14.10.4 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.4

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q16-x86 --version 14.10.4

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

Affected Packages (19)

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4
Magick.NET-Q16-OpenMP-x86	nuget	All versions	14.10.4
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+203 more)	14.10.4
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+203 more)	14.10.4
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+103 more)	14.10.4
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.10.4
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+203 more)	14.10.4
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.10.4
Magick.NET-Q16-HDRI-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+103 more)	14.10.4
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+103 more)	14.10.4
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4

Vulnerability Classification

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

CWE-122
View on MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 6.8 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

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

References

Frequently Asked Questions

What is CVE-2026-30931?: ImageMagick has heap-based buffer overflow in UHDR encoder This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 6.8/10).
How do I check if my project is affected by CVE-2026-30931?: CVE-2026-30931 affects Magick.NET-Q16-x64, Magick.NET-Q16-OpenMP-x86 and Magick.NET-Q8-arm64 (and 16 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-30931 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

6.8

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-h95r-c8c7-mrwx

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