CVE-2026-55597

MEDIUM

ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments

Published July 24, 2026Updated July 24, 2026Source: osv

Summary

Due to incorrect handling of arguments a heap buffer over-write can occur in the JP2 encoder.

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.15.0

NuGet

Update Magick.NET-Q8-x86 to 14.15.0 or later

dotnet add package Magick.NET-Q8-x86 --version 14.15.0

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.15.0

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.15.0 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.15.0

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.15.0 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.15.0

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.15.0

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.15.0 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.15.0

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.15.0 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.15.0

NuGet

Update Magick.NET-Q8-arm64 to 14.15.0 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.15.0

NuGet

Update Magick.NET-Q16-x64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-x64 --version 14.15.0

NuGet

Update Magick.NET-Q16-x86 to 14.15.0 or later

dotnet add package Magick.NET-Q16-x86 --version 14.15.0

NuGet

Update Magick.NET-Q8-AnyCPU to 14.15.0 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.15.0

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.15.0

NuGet

Update Magick.NET-Q16-AnyCPU to 14.15.0 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.15.0

NuGet

Update Magick.NET-Q16-arm64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.15.0

NuGet

Update Magick.NET-Q8-x64 to 14.15.0 or later

dotnet add package Magick.NET-Q8-x64 --version 14.15.0

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.15.0 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.15.0

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

Affected Packages (17)

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+110 more)	14.15.0
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+229 more)	14.15.0
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+58 more)	14.15.0
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+210 more)	14.15.0
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+58 more)	14.15.0
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+58 more)	14.15.0
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+210 more)	14.15.0
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+110 more)	14.15.0
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+58 more)	14.15.0
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+229 more)	14.15.0
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+229 more)	14.15.0
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+213 more)	14.15.0
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+210 more)	14.15.0
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+213 more)	14.15.0
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+58 more)	14.15.0
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+229 more)	14.15.0
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+58 more)	14.15.0

Vulnerability Classification

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

CWE-682
View on MITRE
CWE-787
Out-of-bounds WriteMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.5 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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

References

Frequently Asked Questions

What is CVE-2026-55597?: ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.5/10).
How do I check if my project is affected by CVE-2026-55597?: CVE-2026-55597 affects Magick.NET-Q16-OpenMP-x64, Magick.NET-Q8-x86 and Magick.NET-Q16-OpenMP-arm64 (and 14 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-55597 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

5.5

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

Also Known As

GHSA-c4v7-w88g-m6c4

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