CVE-2026-26983 ImageMagick: Invalid MSL <map> can result in a use after free

What is CVE-2026-26983?

CVE-2026-26983 is a medium-severity use after free vulnerability in Imagemagick Imagemagick, published on 24 Feb 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 7.1.2-15 and 6.9.13-40, the MSL interpreter crashes when processing a invalid `<map>` element that causes it to use an image after it has been freed. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Weakness: CWE-416, CWE-476

Which versions are affected by CVE-2026-26983?

38 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-2026-26983?

Upgrade Magick.NET-Q16-AnyCPU to 14.10.3 or later.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-26983 being exploited?

There is no known exploitation of CVE-2026-26983 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 DEBIAN-CVE-2026-26983, ECHO-ede7-02b4-0ba1, GHSA-w8mw-frc6-r7m8, JLSEC-2026-969, MINI-vj2r-wvqj-5fvf, UBUNTU-CVE-2026-26983.