CVE-2026-56370

ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components Artifact

State: Published
Severity: 4.8 Medium
Published: Jun 24, 2026
Updated: Oct 29, 2026
Reserved: Jun 21, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	3.3 Low	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	VulnCheck

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
ImageMagickImageMagick	7.0.0 to before 7.1.2-19Affected 7.1.2-19Not affected
ImageMagickImageMagick	before 6.9.13-44Affected 6.9.13-44Not affected

References

GitHub Security Advisory (GHSA-pmpg-6pww-fg6q)vendor-advisory
VulnCheck Advisory: ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components Artifactthird-party-advisory

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