RHSA-2026:89725: Critical severity Red Hat Red Hat OpenShift Container Platform for ARM 64 vulnerability
Published Oct 27, 2026
·Updated
Critical: OpenShift Container Platform 4.18.59 bug fix and security update
Affected Software
4 affected components
Red Hat Red Hat OpenShift Container Platform for ARM 64
Red Hat Red Hat OpenShift Container Platform
Red Hat Red Hat OpenShift Container Platform for IBM Z and LinuxONE
Red Hat Red Hat OpenShift Container Platform for Power
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
OpenShift Container Platformto a version that resolves this vulnerability.Fixed in 4.18.59
Event History
Oct 27, 2026
Advisory Published
via Red Hat·12:55 PM
Data Sourced
via Red Hat·12:55 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which OpenShift Container Platform deployments are covered by this update?
The update covers Red Hat OpenShift Container Platform 4.18.59 for standard deployments, ARM 64, IBM Z and LinuxONE, and Power.
2
When was this advisory published and last modified?
It was published on 2026-10-27 and was also last modified on 2026-10-27.