ImageMagick has a possible heap Use After Free vulnerability in its meta coder
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
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | Magick.NET-Q16-AnyCPU | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-arm64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-AnyCPU | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-arm64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-OpenMP-arm64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-OpenMP-x64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-x64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-x86 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-OpenMP-arm64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-OpenMP-x64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q16-OpenMP-x86 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q8-AnyCPU | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q8-arm64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q8-OpenMP-arm64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q8-OpenMP-x64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q8-x64 | < 14.10.3 | 14.10.3 |
| .NET (NuGet) | Magick.NET-Q8-x86 | < 14.10.3 | 14.10.3 |
References
- 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
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-416- Platform
- .NET (NuGet)
- Package
Magick.NET-Q16-AnyCPU, Magick.NET-Q16-arm64, Magick.NET-Q16-HDRI-AnyCPU- Disclosed
- 25.02.2026
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-2gq3-ww97-wfjm - CC BY 4.0
Vulnerability history: Magick.NET-Q16-HDRI-OpenMP-x64
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 95
- First → latest
- 07.2025 05.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 19
- Medium 59
- Low 17
Disclosures per year
- 2025: 14
- 2026: 81
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ImageMagick has a possible heap Use After Free vulnerability in its meta coder this entry
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