GHSA-2gq3-ww97-wfjm
ImageMagick has a possible heap Use After Free vulnerability in its meta coder
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| NuGet | Magick.NET-Q16-AnyCPU | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-AnyCPU | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-OpenMP-arm64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-OpenMP-x64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-arm64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-x64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-HDRI-x86 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-OpenMP-arm64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-OpenMP-x64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-OpenMP-x86 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q16-arm64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-AnyCPU | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-OpenMP-arm64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-OpenMP-x64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-arm64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-x64 | < 14.10.3 | 14.10.3 |
| NuGet | Magick.NET-Q8-x86 | < 14.10.3 | 14.10.3 |
Details
As written in the advisory (Markdown source, shown as plain text).
A heap Use After Free vulnerability exists in the meta coder when an allocation fails and a single byte is written to a stale pointer.
```
==535852==ERROR: AddressSanitizer: heap-use-after-free on address 0x5210000088ff at pc 0x5581bacac14d bp 0x7ffdf667edf0 sp 0x7ffdf667ede0
WRITE of size 1 at 0x5210000088ff thread T0
```
References
External links from the advisory. They lead to third-party sites.
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjm
- https://nvd.nist.gov/vuln/detail/CVE-2026-56376
- https://github.com/ImageMagick/ImageMagick/commit/f5049954f12c6fcf090a776767526d2a4708d58b
- https://github.com/ImageMagick/ImageMagick
- https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coder