CVE-2026-48724: ImageMagick has a Heap Buffer Underwrite in the Floyd-Steinberg depth dithering method

June 25, 2026

When using an image with mask the Floyd-Steinberg dithering method will cause a negative heap buffer over-write.

References

github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2hhq-c99x-492r
github.com/advisories/GHSA-2hhq-c99x-492r
github.com/dlemstra/Magick.NET/releases/tag/14.14.0
nvd.nist.gov/vuln/detail/CVE-2026-48724

Code Behaviors & Features

Detect and mitigate CVE-2026-48724 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →