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ImageMagick releases an invalid pointer in BilateralBlur when memory allocation fails

Moderate severity GitHub Reviewed Published Jan 19, 2026 in ImageMagick/ImageMagick • Updated Jan 20, 2026

Package

nuget Magick.NET-Q16-AnyCPU (NuGet)

Affected versions

< 14.10.2

Patched versions

14.10.2
nuget Magick.NET-Q16-HDRI-AnyCPU (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-HDRI-arm64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-HDRI-x64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-HDRI-x86 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-OpenMP-arm64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-OpenMP-x64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-OpenMP-x86 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-arm64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-x64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q16-x86 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q8-AnyCPU (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q8-OpenMP-arm64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q8-OpenMP-x64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q8-arm64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q8-x64 (NuGet)
< 14.10.2
14.10.2
nuget Magick.NET-Q8-x86 (NuGet)
< 14.10.2
14.10.2

Description

The BilateralBlurImage method will allocate a set of double buffers inside AcquireBilateralTLS. But the last element in the set is not properly initialized. This will result in a release of an invalid pointer inside DestroyBilateralTLS when the memory allocation fails.

References

@dlemstra dlemstra published to ImageMagick/ImageMagick Jan 19, 2026
Published by the National Vulnerability Database Jan 20, 2026
Published to the GitHub Advisory Database Jan 20, 2026
Reviewed Jan 20, 2026
Last updated Jan 20, 2026

Severity

Moderate

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
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

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

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(19th percentile)

Weaknesses

Release of Invalid Pointer or Reference

The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly. Learn more on MITRE.

CVE ID

CVE-2026-22770

GHSA ID

GHSA-39h3-g67r-7g3c

Source code

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