CVE-2026-25796
Medium
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, in `ReadSTEGANOImage()` (`coders/stegano.c`), the `watermark` Image object is not freed on three early-return paths, resulting in a definite memory leak (~13.5KB+ per invocation) that can be exploited for denial of service. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
SeverityMedium
CVSS5.3
Exploit probability—
ProductImagemagick
PublishedFeb 24, 2026
First seenFeb 24, 2026
Weakness typeCWE-401CWE-401
How to fix
Update
- imagemagick imagemagick6.9.13-40, 7.1.2-15 or later
- Magick.NET-Q16-AnyCPU14.10.3 or later
- Magick.NET-Q16-HDRI-AnyCPU14.10.3 or later
- Magick.NET-Q16-HDRI-OpenMP-arm6414.10.3 or later
- Magick.NET-Q16-HDRI-OpenMP-x6414.10.3 or later
- Magick.NET-Q16-HDRI-arm6414.10.3 or later
- Magick.NET-Q16-HDRI-x6414.10.3 or later
- Magick.NET-Q16-HDRI-x8614.10.3 or later
- Magick.NET-Q16-OpenMP-arm6414.10.3 or later
- Magick.NET-Q16-OpenMP-x6414.10.3 or later
- Magick.NET-Q16-OpenMP-x8614.10.3 or later
- Magick.NET-Q16-arm6414.10.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| imagemagick imagemagick | v < 6.9.13-40, 7.0.0-0 ≤ v < 7.1.2-15 | 6.9.13-40, 7.1.2-15 |
| Magick.NET-Q16-AnyCPUNuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-HDRI-AnyCPUNuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-HDRI-OpenMP-arm64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-HDRI-OpenMP-x64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-HDRI-arm64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-HDRI-x64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-HDRI-x86NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-OpenMP-arm64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-OpenMP-x64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-OpenMP-x86NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-arm64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-x64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q16-x86NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q8-AnyCPUNuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q8-OpenMP-arm64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q8-arm64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q8-x64NuGet | v < 14.10.3 | 14.10.3 |
| Magick.NET-Q8-x86NuGet | v < 14.10.3 | 14.10.3 |
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