CVE-2026-53466 ImageMagick: Heap Buffer Over-Read in XCF decoder due to integer conversion overflow

What is CVE-2026-53466?

CVE-2026-53466 is a medium-severity vulnerability in Imagemagick Imagemagick, published on 1 Jul 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 6.9.13-51 and 7.1.2-26, an integer overflow in the XCF decoder can result in an out of bounds read when a crafted image is read, potentially resulting in a crash. This issue has been fixed in versions 6.9.13-51 and 7.1.2-26.

Weakness: CWE-681, CWE-190

Which versions are affected by CVE-2026-53466?

34 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-2026-53466?

Upgrade Magick.NET-Q16-AnyCPU to 14.15.0 or later.

Is CVE-2026-53466 being exploited?

There is no known exploitation of CVE-2026-53466 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-2026-53466, ECHO-c8d6-0c6b-390b, GHSA-pjxj-pchx-4c3m, JLSEC-2026-1034, MINI-ff6x-rrvr-8q8v, UBUNTU-CVE-2026-53466.