# CVE-2026-33901: ImageMagick has a Heap Buffer Overflow via MVG decoder > A heap buffer overflow in the MVG decoder allows attackers to execute arbitrary code or cause denial of service via crafted images. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 13 Apr 2026 - **Updated:** 15 Jul 2026 - **Also known as:** DEBIAN-CVE-2026-33901, ECHO-b979-d90e-ae6f, GHSA-x9h5-r9v2-vcww, JLSEC-2026-995, MINI-mv7c-4xmj-995w, UBUNTU-CVE-2026-33901 ## What is CVE-2026-33901? CVE-2026-33901 is a high-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, a heap buffer overflow occurs in the MVG decoder that could result in an out of bounds write when processing a crafted image. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19. Weakness: CWE-787 (Out-of-bounds Write), CWE-122 (Heap-based Buffer Overflow) ## Which versions are affected by CVE-2026-33901? 34 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 | 14.12.0 | | `Magick.NET-Q16-AnyCPU` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-AnyCPU` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-OpenMP-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-HDRI-x86` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-OpenMP-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-OpenMP-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q16-x86` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-AnyCPU` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-OpenMP-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-OpenMP-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-arm64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-x64` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.12.0 | | `Magick.NET-Q8-x86` | NuGet | All versions | 14.12.0 | Products: Imagemagick Imagemagick. ## How do I fix CVE-2026-33901? Upgrade Magick.NET-Q16-AnyCPU to 14.12.0 or later. ## Is CVE-2026-33901 being exploited? There is no known exploitation of CVE-2026-33901 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-2026-33901 and fix it if it is affected. What it is: CVE-2026-33901 is a high-severity memory corruption vulnerability in Imagemagick Imagemagick, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2026-33901 in the wild and no public exploit code. Affected packages and fixed versions: - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-AnyCPU (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-AnyCPU (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-arm64 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-x64 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-x86 (NuGet): affected all versions; fixed in 14.12.0 - Magick.NET-Q16-HDRI-x86 (NuGet): affected all versions; fixed in 14.12.0 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-2026-33901/ (Markdown: https://insights.sbomify.com/CVE-2026-33901/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33901 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33901 - OSV: https://osv.dev/vulnerability/CVE-2026-33901 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-33901/ Summaries are generated and may contain mistakes; the official description above is the record.