Low [CVE-2026-56370] ImageMagick - Out-of-bounds Access in ConnectedComponentsImage via connected-components Artifact
This low-severity Red Hat Linux advisory covers CVE-2026-56370 affecting Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat package: imagemagick.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
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.
By passing malformed connected-components definitions through the CLI, an attacker can cause a denial of service or potentially execute arbitrary code. Exploitation requires local user interaction via the CLI and can result in a denial of service or arbitrary code execution.
Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L). Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.
Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: imagemagick.
Is CVE-2026-56370 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-56370 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-56370?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
- < 7.1.2-19
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- Prevent the injection of malformed -connected-components flags by strictly sanitizing all user-supplied CLI input in backend applications. Additionally, if automated ImageMagick processing is not required, restrict execution permissions on the binaries to trusted administrative groups.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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