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ImageMagick has a heap buffer overflow read in magnify operation via unrecognized magnify:method value

Low severity GitHub Reviewed Published Apr 13, 2026 in ImageMagick/ImageMagick • Updated Apr 14, 2026

Package

nuget Magick.NET-Q16-AnyCPU (NuGet)

Affected versions

< 14.20.0

Patched versions

14.20.0
nuget Magick.NET-Q16-HDRI-AnyCPU (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-HDRI-arm64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-HDRI-x64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-HDRI-x86 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-OpenMP-arm64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-OpenMP-x64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-arm64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-x64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q16-x86 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q8-AnyCPU (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q8-OpenMP-arm64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q8-OpenMP-x64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q8-arm64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q8-x64 (NuGet)
< 14.20.0
14.20.0
nuget Magick.NET-Q8-x86 (NuGet)
< 14.20.0
14.20.0

Description

An unrecognized magnify:method will result in an out of bounds read in the magnify operation.

==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a000000b30
READ of size 4 at 0x61a000000b30 thread T0

References

@dlemstra dlemstra published to ImageMagick/ImageMagick Apr 13, 2026
Published to the GitHub Advisory Database Apr 14, 2026
Reviewed Apr 14, 2026
Last updated Apr 14, 2026

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

EPSS score

Weaknesses

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Learn more on MITRE.

CVE ID

No known CVE

GHSA ID

GHSA-8vfj-q2cp-5m5j

Source code

Credits

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