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ImageMagick: Memory allocation with excessive without limits in the internal SVG decoder

High severity GitHub Reviewed Published Feb 23, 2026 in ImageMagick/ImageMagick • Updated Feb 24, 2026

Package

nuget Magick.NET-Q16-AnyCPU (NuGet)

Affected versions

< 14.10.3

Patched versions

14.10.3
nuget Magick.NET-Q16-HDRI-AnyCPU (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-arm64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-x64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-HDRI-x86 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-arm64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-x64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-OpenMP-x86 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-arm64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-x64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q16-x86 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q8-AnyCPU (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q8-OpenMP-arm64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q8-OpenMP-x64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q8-arm64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q8-x64 (NuGet)
< 14.10.3
14.10.3
nuget Magick.NET-Q8-x86 (NuGet)
< 14.10.3
14.10.3

Description

A crafted SVG file containing an malicious element causes ImageMagick to attempt to allocate ~674 GB of memory, leading to an out-of-memory abort.

Found via AFL++ fuzzing with afl-clang-lto instrumentation and AddressSanitizer.

References

@dlemstra dlemstra published to ImageMagick/ImageMagick Feb 23, 2026
Published by the National Vulnerability Database Feb 24, 2026
Published to the GitHub Advisory Database Feb 24, 2026
Reviewed Feb 24, 2026
Last updated Feb 24, 2026

Severity

High

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
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
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:L/PR:N/UI:N/S:U/C:N/I:N/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.
(5th percentile)

Weaknesses

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. Learn more on MITRE.

Memory Allocation with Excessive Size Value

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. Learn more on MITRE.

CVE ID

CVE-2026-25985

GHSA ID

GHSA-v7g2-m8c5-mf84

Source code

Credits

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