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

What is CVE-2026-45664?

CVE-2026-45664 is a medium-severity denial of service vulnerability in Imagemagick Imagemagick, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-770, CWE-674, CWE-407, CWE-400

Which versions are affected by CVE-2026-45664?

36 open source packages ship an affected version, including Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU and Magick.NET-Q16-HDRI-OpenMP-arm64. It affects 1 product.

Products include Imagemagick Imagemagick.

How do I fix CVE-2026-45664?

Upgrade Magick.NET-Q16-AnyCPU to 14.13.1 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-45664 being exploited?

There is no known exploitation of CVE-2026-45664 in the wild and no public exploit code.

Other vulnerabilities in Imagemagick Imagemagick

• CVE-2019-19952 Use after free in n/a Critical 9.8
• CVE-2018-16328 Null dereference in n/a Critical 9.8
• CVE-2018-16329 Null dereference in n/a Critical 9.8
• CVE-2017-18210 Null dereference in n/a Critical 9.8
• CVE-2017-14138 Denial of service in n/a Critical 9.8

All Imagemagick Imagemagick vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLSA-2026-1784536823, CLSA-2026-1784536924, CLSA-2026-1784537224, CLSA-2026-1784537825, DEBIAN-CVE-2026-45664, ECHO-2a36-45fa-ce19 and 4 more.