GitHub Advisoryadvisory · NuGet
GHSA-2gq3-ww97-wfjm ImageMagick has a possible heap Use After Free vulnerability in its meta coder
LOW
Official page ↗
- Aliases
- CVE-2026-56376
- Ecosystem
- NuGet
- Packages
- Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU, Magick.NET-Q16-HDRI-OpenMP-arm64, Magick.NET-Q16-HDRI-OpenMP-x64, Magick.NET-Q16-HDRI-arm64, Magick.NET-Q16-HDRI-x64, Magick.NET-Q16-HDRI-x86, Magick.NET-Q16-OpenMP-arm64, Magick.NET-Q16-OpenMP-x64, Magick.NET-Q16-OpenMP-x86, Magick.NET-Q16-arm64, Magick.NET-Q8-AnyCPU, Magick.NET-Q8-OpenMP-arm64, Magick.NET-Q8-OpenMP-x64, Magick.NET-Q8-arm64, Magick.NET-Q8-x64, Magick.NET-Q8-x86
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-416
- Reviewed
- 2026-02-25
Affected packages
• NuGet Magick.NET-Q16-AnyCPU: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-HDRI-AnyCPU: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-HDRI-OpenMP-arm64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-HDRI-OpenMP-x64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-HDRI-arm64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-HDRI-x64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-HDRI-x86: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-OpenMP-arm64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-OpenMP-x64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-OpenMP-x86: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q16-arm64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q8-AnyCPU: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q8-OpenMP-arm64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q8-OpenMP-x64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q8-arm64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q8-x64: < 14.10.3 → fixed in 14.10.3
• NuGet Magick.NET-Q8-x86: < 14.10.3 → fixed in 14.10.3
Description
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
```
Related
Alias · CVE (1)
- CVE-2026-56376 ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is… vulnerability
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2gq3-ww97-wfjm web
- https://nvd.nist.gov/vuln/detail/CVE-2026-56376 advisory
- https://github.com/ImageMagick/ImageMagick/commit/f5049954f12c6fcf090a776767526d2a4708d58b web
- https://github.com/ImageMagick/ImageMagick package
- https://www.vulncheck.com/advisories/imagemagick-heap-use-after-free-in-meta-coder web