RHSA-2026:70615: High severity Red Hat Red Hat OpenShift Container Platform for IBM Z and LinuxONE vulnerability
Published Oct 1, 2026
·Updated
Important: OpenShift Container Platform 4.18.56 bug fix and security update
Affected Software
4 affected components
Red Hat Red Hat OpenShift Container Platform for IBM Z and LinuxONE
Red Hat Red Hat OpenShift Container Platform for Power
Red Hat Red Hat OpenShift Container Platform
Red Hat Red Hat OpenShift Container Platform for ARM 64
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
OpenShift Container Platformto a version that resolves this vulnerability.Fixed in 4.18.56
Event History
Oct 1, 2026
Advisory Published
via Red Hat·03:11 PM
Data Sourced
via Red Hat·03:11 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which OpenShift Container Platform deployments are covered by this advisory?
The advisory covers Red Hat OpenShift Container Platform, including deployments for IBM Z and LinuxONE, Power, and ARM 64.