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Back to active CVEs
Medium · CVSS 4.8CVE-2026-56370GHSA-PMPG-6PWW-FG6Q

ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components ArtifactCVE-2026-56370

Answer in brief

CVE-2026-56370 records a Medium severity (CVSS 4.8) vulnerability in ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components Artifact. The current sources do not mark it as known exploited. The current feed maps ImageMagick/ImageMagick (generic), ImageMagick/ImageMagick (generic), Magick.NET-Q16-AnyCPU (nuget), Magick.NET-Q16-arm64 (nuget) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 24, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Jun 24, 2026Material review Oct 29, 2026
Upstream Advisory

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125, CWE-787
Source
CVE List V5
Source checked
Oct 29, 2026
References
4 linked sources
Open source record

Key facts

Risk
Medium · CVSS 4.8
Exploitation
Not marked as known exploited
Affected software
20 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps ImageMagick/ImageMagick (generic), ImageMagick/ImageMagick (generic), Magick.NET-Q16-AnyCPU (nuget), Magick.NET-Q16-arm64 (nuget) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
ImageMagick/ImageMagickgeneric>=7.0.0 <7.1.2-197.1.2-19
ImageMagick/ImageMagickgeneric>=0 <6.9.13-446.9.13-44
Magick.NET-Q16-AnyCPUnuget<14.12.014.12.0
Magick.NET-Q16-arm64nuget<14.12.014.12.0
Magick.NET-Q16-HDRI-AnyCPUnuget<14.12.014.12.0
Magick.NET-Q16-HDRI-arm64nuget<14.12.014.12.0
Magick.NET-Q16-HDRI-OpenMP-arm64nuget<14.12.014.12.0
Magick.NET-Q16-HDRI-OpenMP-x64nuget<14.12.014.12.0
Magick.NET-Q16-HDRI-x64nuget<14.12.014.12.0
Magick.NET-Q16-HDRI-x86nuget<14.12.014.12.0
Magick.NET-Q16-OpenMP-arm64nuget<14.12.014.12.0
Magick.NET-Q16-OpenMP-x64nuget<14.12.014.12.0
Magick.NET-Q16-x64nuget<14.12.014.12.0
Magick.NET-Q16-x86nuget<14.12.014.12.0
Magick.NET-Q8-AnyCPUnuget<14.12.014.12.0
Magick.NET-Q8-arm64nuget<14.12.014.12.0
Magick.NET-Q8-OpenMP-arm64nuget<14.12.014.12.0
Magick.NET-Q8-OpenMP-x64nuget<14.12.014.12.0
Magick.NET-Q8-x64nuget<14.12.014.12.0
Magick.NET-Q8-x86nuget<14.12.014.12.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for ImageMagick/ImageMagick, ImageMagick/ImageMagick, Magick.NET-Q16-AnyCPU.
  2. 2Review the reported fix. Update ImageMagick/ImageMagick to 7.1.2-19; ImageMagick/ImageMagick to 6.9.13-44; Magick.NET-Q16-AnyCPU to 14.12.0; Magick.NET-Q16-arm64 to 14.12.0; Magick.NET-Q16-HDRI-AnyCPU to 14.12.0; Magick.NET-Q16-HDRI-arm64 to 14.12.0; Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.12.0; Magick.NET-Q16-HDRI-OpenMP-x64 to 14.12.0; Magick.NET-Q16-HDRI-x64 to 14.12.0; Magick.NET-Q16-HDRI-x86 to 14.12.0; Magick.NET-Q16-OpenMP-arm64 to 14.12.0; Magick.NET-Q16-OpenMP-x64 to 14.12.0; Magick.NET-Q16-x64 to 14.12.0; Magick.NET-Q16-x86 to 14.12.0; Magick.NET-Q8-AnyCPU to 14.12.0; Magick.NET-Q8-arm64 to 14.12.0; Magick.NET-Q8-OpenMP-arm64 to 14.12.0; Magick.NET-Q8-OpenMP-x64 to 14.12.0; Magick.NET-Q8-x64 to 14.12.0; Magick.NET-Q8-x86 to 14.12.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 24, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
Upstream source description

ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage() when processing connected-components artifacts with invalid indices. Attackers can trigger access violations by specifying malformed connected-components definitions via CLI, causing denial of service or potential code execution.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • MariaDB Connector/J: Rogue server can make the client read past the packet through server-declared lengthsAlso CWE-125