# CVE-2026-56362: ImageMagick - Heap-buffer-overflow Read in GetPixelIndex via OpenPixelCache Metadata Desynchronization > Attackers can trigger a heap-buffer-overflow read in ImageMagick via metadata desynchronization, potentially causing crashes or information disclosure. - **Severity:** Low 2.1 (`CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N`) - **Exploited in the wild:** Not known - **Login needed:** An administrator - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 8 Jul 2026 - **Updated:** 29 Oct 2026 - **Also known as:** DEBIAN-CVE-2026-56362, ECHO-ee2b-a590-0121, GHSA-gq5v-qf8q-fp77, GHSA-m366-rhm3-cx89, JLSEC-2026-1043, MINI-9gg7-qf4j-j2pc, UBUNTU-CVE-2026-56362 ## What is CVE-2026-56362? CVE-2026-56362 is a low-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 8 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim. ### Official description ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image channel metadata before pixel cache memory allocation. Attackers can trigger memory and disk allocation failures to cause a heap-buffer-overflow read affecting any writer calling GetPixelIndex. Weakness: CWE-125 (Out-of-bounds Read) ## Which versions are affected by CVE-2026-56362? 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 | 14.10.3 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.3 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.3 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-56362? Upgrade Magick.NET-Q16-AnyCPU to 14.10.3 or later. ## Is CVE-2026-56362 being exploited? There is no known exploitation of CVE-2026-56362 in the wild and no public exploit code. ## 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-2026-56362 and fix it if it is affected. What it is: CVE-2026-56362 is a low-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 8 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim. Exploitation: There is no known exploitation of CVE-2026-56362 in the wild and no public exploit code. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.3 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.3 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-2026-56362/ (Markdown: https://insights.sbomify.com/CVE-2026-56362/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-56362 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56362 - OSV: https://osv.dev/vulnerability/CVE-2026-56362 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-56362/ Summaries are generated and may contain mistakes; the official description above is the record.