ImageMagick: Infinite Loop in the MIFF decoder can lead to CPU exhaustion — CVE-2026-46522

Summary

Due to a missing check in the MIFF decoder a crafted file could cause an infinite loop resulting in CPU exhaustion.

Product

nuget: Magick.NET-Q16-AnyCPU | nuget: Magick.NET-Q16-HDRI-AnyCPU | nuget: Magick.NET-Q16-HDRI-OpenMP-arm64 | nuget: Magick.NET-Q16-HDRI-OpenMP-x64 | nuget: Magick.NET-Q16-HDRI-arm64 | nuget: Magick.NET-Q16-HDRI-x64 | nuget: Magick.NET-Q16-HDRI-x86 | nuget: Magick.NET-Q16-OpenMP-arm64 | +10

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Related advisories