CVE-2026-46520: ImageMagick: Heap Buffer Over-Write in IPL decoder when reading multiple images of different dimensions

Published May 18, 2026
·
Updated

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, when reading multiple images with different dimensions an out of bounds heap write can occur. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.

Affected Software

18 affected componentsFixes available
nuget/Magick.NET-Q8-x86<14.13.1
14.13.1
nuget/Magick.NET-Q8-arm64<14.13.1
14.13.1
nuget/Magick.NET-Q8-OpenMP-x64<14.13.1
14.13.1
nuget/Magick.NET-Q8-OpenMP-arm64<14.13.1
14.13.1
nuget/Magick.NET-Q8-AnyCPU<14.13.1
14.13.1
nuget/Magick.NET-Q16-x86<14.13.1
14.13.1
nuget/Magick.NET-Q16-arm64<14.13.1
14.13.1
nuget/Magick.NET-Q16-OpenMP-x64<14.13.1
14.13.1
nuget/Magick.NET-Q16-OpenMP-arm64<14.13.1
14.13.1
nuget/Magick.NET-Q16-HDRI-x86<14.13.1
14.13.1
nuget/Magick.NET-Q16-HDRI-x64<14.13.1
14.13.1
nuget/Magick.NET-Q16-HDRI-arm64<14.13.1
14.13.1
nuget/Magick.NET-Q16-HDRI-OpenMP-x64<14.13.1
14.13.1
nuget/Magick.NET-Q16-HDRI-OpenMP-arm64<14.13.1
14.13.1
nuget/Magick.NET-Q16-HDRI-AnyCPU<14.13.1
14.13.1
nuget/Magick.NET-Q16-AnyCPU<14.13.1
14.13.1
ImageMagick ImageMagick<6.9.13-48
ImageMagick ImageMagick>=7.0.0-0<7.1.2-23

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade nuget/Magick.NET-Q8-x86 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  2. Upgrade

    Upgrade nuget/Magick.NET-Q8-x64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  3. Upgrade

    Upgrade nuget/Magick.NET-Q8-arm64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  4. Upgrade

    Upgrade nuget/Magick.NET-Q8-OpenMP-x64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  5. Upgrade

    Upgrade nuget/Magick.NET-Q8-OpenMP-arm64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  6. Upgrade

    Upgrade nuget/Magick.NET-Q8-AnyCPU to a version that resolves this vulnerability.

    Fixed in 14.13.1
  7. Upgrade

    Upgrade nuget/Magick.NET-Q16-x86 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  8. Upgrade

    Upgrade nuget/Magick.NET-Q16-x64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  9. Upgrade

    Upgrade nuget/Magick.NET-Q16-arm64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  10. Upgrade

    Upgrade nuget/Magick.NET-Q16-OpenMP-x64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  11. Upgrade

    Upgrade nuget/Magick.NET-Q16-OpenMP-arm64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  12. Upgrade

    Upgrade nuget/Magick.NET-Q16-HDRI-x86 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  13. Upgrade

    Upgrade nuget/Magick.NET-Q16-HDRI-x64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  14. Upgrade

    Upgrade nuget/Magick.NET-Q16-HDRI-arm64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  15. Upgrade

    Upgrade nuget/Magick.NET-Q16-HDRI-OpenMP-x64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  16. Upgrade

    Upgrade nuget/Magick.NET-Q16-HDRI-OpenMP-arm64 to a version that resolves this vulnerability.

    Fixed in 14.13.1
  17. Upgrade

    Upgrade nuget/Magick.NET-Q16-HDRI-AnyCPU to a version that resolves this vulnerability.

    Fixed in 14.13.1
  18. Upgrade

    Upgrade nuget/Magick.NET-Q16-AnyCPU to a version that resolves this vulnerability.

    Fixed in 14.13.1
  19. Upgrade

    Upgrade ImageMagick to a version that resolves this vulnerability.

    Fixed in 6.9.13-48
  20. Upgrade

    Upgrade ImageMagick to a version that resolves this vulnerability.

    Fixed in 7.1.2-23

Event History

May 18, 2026
Advisory Published
via GitHub·08:36 PM
Data Sourced
via GitHub·08:36 PM
DescriptionSeverityWeaknessAffected Software
Jun 10, 2026
CVE Published
via MITRE·09:31 PM
Data Sourced
via MITRE·09:31 PM
DescriptionSeverityWeakness
Data Sourced
via Red Hat·10:01 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-46520?

CVE-2026-46520 is classified as a critical vulnerability due to the potential for an out of bounds heap write.

2

How do I fix CVE-2026-46520?

To resolve CVE-2026-46520, upgrade to version 14.13.1 of affected Magick.NET packages.

3

What software is affected by CVE-2026-46520?

CVE-2026-46520 affects various versions of Magick.NET packages including both Q8 and Q16 across multiple architectures.

4

What kind of attack can CVE-2026-46520 facilitate?

CVE-2026-46520 could enable attackers to execute arbitrary code through out of bounds write access when handling images.

5

Is CVE-2026-46520 being actively exploited?

Currently, there are no public reports of active exploitation related to CVE-2026-46520, but the critical nature warrants immediate attention.

Company

Resources

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