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Critical: Red Hat Security Advisory: OpenShift Container Platform 4.21.27 bug fix and security update

🗓️ 04 Aug 2026 15:33:40Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 19 Views

Critical security update for OpenShift Container Platform 4.21.27 with bug fixes and container images.

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01 Oct 2026 09:43Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.5 - 10
CVSS 46.9
EPSS0.00966
SSVC
critical security updateopenshift container platformversion 4.21.27container imagesrelease notes
19