CVE-2026-27799
ImageMagick has a heap Buffer Over-read in its DJVU image format handler
Reported by github_m · Published February 25, 2026
Magick.NET-Q16-x64 is fixed in 14.10.3 (NuGet)
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the DJVU image format handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-bounds memory reads. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| Magick.NET-Q16-x64 | NuGet | 14.10.3 |
| Magick.NET-Q8-arm64 | NuGet | 14.10.3 |
| Magick.NET-Q8-OpenMP-arm64 | NuGet | 14.10.3 |
| Magick.NET-Q8-x64 | NuGet | 14.10.3 |
| magick.net-q8-openmp-x64 | NuGet | 14.10.3 |
| magick.net-q16-anycpu | NuGet | 14.10.3 |
| ImageMagick | Amazon Linux | 6.9.10.97-1.amzn2.0.22, 1:6.9.13.40-1.amzn2023.0.1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| ImageMagick | ImageMagick | < 6.9.13-40, >= 7.0.0, < 7.1.2-15 |
| NuGet | Magick.NET-Q8-OpenMP-arm64 | 0 |
| amazon:2023 | ImageMagick | 0 |
| NuGet | magick.net-q16-anycpu | 0 |
| amazon:2 | ImageMagick | 0 |
| NuGet | Magick.NET-Q16-AnyCPU | 0 |
| NuGet | Magick.NET-Q16-HDRI-x64 | 0 |
| NuGet | Magick.NET-Q8-x64 | 0 |
| ImageMagick | ImageMagick | 7.0.0, 0 |
| NuGet | magick.net-q8-openmp-x64 | 0 |
| amazon:2023 | ImageMagick-doc | 0 |
| amazon:2 | ImageMagick-perl | 0 |
| amazon:2 | ImageMagick-c++ | 0 |
| NuGet | Magick.NET-Q8-arm64 | 0 |
| NuGet | magick.net-q8-x64 | 0 |
| alpine | imagemagick | 0 |
| NuGet | Magick.NET-Q16-OpenMP-arm64 | 0 |
| amazon:2023 | ImageMagick-perl | 0 |
| NuGet | Magick.NET-Q16-arm64 | 0 |
| NuGet | Magick.NET-Q16-HDRI-OpenMP-arm64 | 0 |
…and 21 more
Timeline
- Feb 24, 2026 CVE Published
- Feb 26, 2026 EPSS Score (30 in total, the first dated here)
- Mar 17, 2026 Coalition ESS Score (2 in total, the first dated here)
- Mar 19, 2026 Security Advisory
- Mar 30, 2026 PoC Published
- Aug 11, 2026 Distribution Patch
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-27799
vulnetix vdb fixes CVE-2026-27799Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-27799/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r99p-5442-q2x2 x_refsource_CONFIRM
- https://github.com/ImageMagick/ImageMagick/commit/e87695b3227978ad70b967b8d054baaf8ac2cced x_refsource_MISC
- https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-27799 advisory
- https://github.com/advisories/GHSA-r99p-5442-q2x2 advisory
- https://github.com/ImageMagick/ImageMagick url