# CVE-2026-56364: ImageMagick - Memory Leak in LoadOpenCLDeviceBenchmark() via Malformed XML > Attackers with write access to the OpenCL cache can cause memory exhaustion and denial of service via malformed XML files in ImageMagick. - **Severity:** Low 1.8 (`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`) - **Exploited in the wild:** Not known - **Login needed:** An administrator - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 30 Jun 2026 - **Updated:** 1 Jul 2026 - **Also known as:** DEBIAN-CVE-2026-56364, ECHO-56ee-a872-2ea7, GHSA-9gjp-pj3g-87pq, GHSA-qp59-x883-77qv, JLSEC-2026-1045, MINI-4xqq-8j49-f7qw, UBUNTU-CVE-2026-56364 ## What is CVE-2026-56364? CVE-2026-56364 is a low-severity denial of service vulnerability in Imagemagick Imagemagick, published on 30 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim. ### Official 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. Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime) ## Which versions are affected by CVE-2026-56364? 38 open source packages ship an affected version, including Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU and Magick.NET-Q16-HDRI-OpenMP-arm64. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.2 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.2 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-56364? Upgrade Magick.NET-Q16-AnyCPU to 14.10.2 or later. ## Is CVE-2026-56364 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56364 exists. ## Other vulnerabilities in Imagemagick Imagemagick - [CVE-2019-19952](https://insights.sbomify.com/CVE-2019-19952/): Use after free in n/a (critical 9.8) - [CVE-2018-16328](https://insights.sbomify.com/CVE-2018-16328/): Null dereference in n/a (critical 9.8) - [CVE-2018-16329](https://insights.sbomify.com/CVE-2018-16329/): Null dereference in n/a (critical 9.8) - [CVE-2017-18210](https://insights.sbomify.com/CVE-2017-18210/): Null dereference in n/a (critical 9.8) - [CVE-2017-14138](https://insights.sbomify.com/CVE-2017-14138/): Denial of service in n/a (critical 9.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2026-56364 and fix it if it is affected. What it is: CVE-2026-56364 is a low-severity denial of service vulnerability in Imagemagick Imagemagick, published on 30 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56364 exists. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.2 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.2 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2026-56364/ (Markdown: https://insights.sbomify.com/CVE-2026-56364/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-56364 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56364 - OSV: https://osv.dev/vulnerability/CVE-2026-56364 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-56364/ Summaries are generated and may contain mistakes; the official description above is the record.