CVE-2026-61858

LOW

ImageMagick: Policy Bypass in APNG encoder and delegates due to a missing check

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

Summary

Due to a missing check in the APNG encoder and external delegates it is possibly to bypass the policy and write to a disallowed path.

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-59
View on MITRE
CWE-862
Missing AuthorizationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 3.3 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

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

References

Frequently Asked Questions

What is CVE-2026-61858?: ImageMagick: Policy Bypass in APNG encoder and delegates due to a missing check This vulnerability has been assigned a severity rating of LOW (CVSS score: 3.3/10).
How do I check if my project is affected by CVE-2026-61858?: CVE-2026-61858 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-2026-61858 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

3.3

Exploitation is difficult or impact is minor. Address in your next planned update.

Also Known As

GHSA-v3j6-27vc-7pw2

Related CVEs

CVE-2026-25967
HIGH
ImageMagick: Stack buffer overflow in FTXT reader via oversized integer field
CVE-2026-25989
HIGH
ImageMagick: Integer overflow or wraparound and incorrect conversion between numeric types in the internal SVG decoder
CVE-2026-55510
MEDIUM
ImageMagick: Use-After-Free in crafted 8BIM when identifying an image
CVE-2026-25986
MEDIUM
ImageMagick has heap buffer overflow in YUV 4:2:2 decoder
CVE-2026-28692
MEDIUM
ImageMagick has a heap buffer over-read via 32-bit integer overflow in MAT decoder
CVE-2026-40311
MEDIUM
ImageMagick has a heap-use-after-free via XMP profile could result in a crash when printing the values.
CVE-2026-25984
LOW
ImageMagick: Integer Overflow in PSB (PSD v2) RLE decoding path causes heap Out of Bounds reads for 32-bit builds
CVE-2025-55212
LOW
ImageMagick affected by divide-by-zero in ThumbnailImage via montage -geometry ":" leads to crash

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies