medium5.5
CVE-2026-40183
ImageMagick is free and open-source software used for editing and manipulating digital images.
Impact
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Magick.NET-Q16-AnyCPU | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-AnyCPU | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-OpenMP-arm64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-arm64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-x64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-HDRI-x86 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-OpenMP-arm64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-OpenMP-x64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-arm64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-x64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q16-x86 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-AnyCPU | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-OpenMP-arm64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-OpenMP-x64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-arm64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-x64 | < 14.12.0 | 14.12.0 |
| nuget | Magick.NET-Q8-x86 | < 14.12.0 | 14.12.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Imagemagick | Imagemagick | before 7.1.2-19 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-jvgr-9ph5-m8v4
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-jvgr-9ph5-m8v4
- https://nvd.nist.gov/vuln/detail/CVE-2026-40183
- https://github.com/ImageMagick/ImageMagick/commit/1c7767fc5f822c6edc104c1220d523e96fa20b5a
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0