# CVE-2026-28494: ImageMagick affected by stack corruption through long morphology kernel names or arrays > Attackers can trigger stack corruption via long morphology kernel names, potentially leading to code execution or crashes in applications using ImageMagick. - **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** A user has to click or open something - **Fix available:** Yes - **Published:** 9 Mar 2026 - **Updated:** 10 Mar 2026 - **Also known as:** CLSA-2026-1785857185, CLSA-2026-1785945472, CLSA-2026-1786007261, DEBIAN-CVE-2026-28494, ECHO-2fa4-eedc-fbcc, GHSA-932h-jw47-73jm, JLSEC-2026-973, MINI-63cq-rpvq-3jr5, UBUNTU-CVE-2026-28494 ## What is CVE-2026-28494? CVE-2026-28494 is a high-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 9 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link. ### Official description ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a stack buffer overflow exists in ImageMagick's morphology kernel parsing functions. User-controlled kernel strings exceeding a buffer are copied into fixed-size stack buffers via memcpy without bounds checking, resulting in stack corruption. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41. Weakness: CWE-121 (Stack-based Buffer Overflow) ## Which versions are affected by CVE-2026-28494? 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 | 14.10.4 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-OpenMP-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.4 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.10.4 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-28494? Upgrade Magick.NET-Q16-AnyCPU to 14.10.4 or later. ## Is CVE-2026-28494 being exploited? There is no known exploitation of CVE-2026-28494 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-2026-28494 and fix it if it is affected. What it is: CVE-2026-28494 is a high-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 9 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link. Exploitation: There is no known exploitation of CVE-2026-28494 in the wild and no public exploit code. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.4 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.10.4 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-2026-28494/ (Markdown: https://insights.sbomify.com/CVE-2026-28494/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-28494 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-28494 - OSV: https://osv.dev/vulnerability/CVE-2026-28494 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-28494/ Summaries are generated and may contain mistakes; the official description above is the record.