Quick answers
- Is CVE-2026-56367 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-56367 being exploited in the wild.
- How severe is CVE-2026-56367?
- Low severity, with a CVSS score of 3.7, published 21 June 2026.
- Which products and versions are affected?
- Magick.NET-Q16-AnyCPU (NuGet) < 14.10.3; Magick.NET-Q16-arm64 (NuGet) < 14.10.3; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.10.3; Magick.NET-Q16-HDRI-arm64 (NuGet) < 14.10.3; and 15 more.
- Is there a fix for CVE-2026-56367?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-56367 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-56367?
- Check whether you run Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An integer overflow vulnerability exists in the ReadPSDChannelRLE function within coders/psd.c of ImageMagick. The flaw is triggered during the RLE decoding of PSB (PSD version 2) files specifically on 32-bit architectures. An attacker can exploit this by providing a crafted PSB file, leading to a heap-based out-of-bounds read. This can result in a denial-of-service (crash) or the disclosure of sensitive memory contents. The issue is addressed in versions 7.1.2-15 and 6.9.13-40.
Affected products
- ImageMagick ImageMagick < 7.1.2-15, < 6.9.13-40 (32-bit builds)
Identifiers
- CVE-2026-56367
- GHSA-273h-m46v-96q4
Timeline
- 2026-02-23: advisory: GitHub Security Advisory published
- 2026-06-21: disclosed: NVD publication date