RHSA-2026:89818: High severity Red Hat Red Hat OpenShift Container Platform for IBM Z and LinuxONE vulnerability

Published Oct 26, 2026
·
Updated

Important: Red Hat build of MicroShift 4.21.40 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 ARM 64
Red Hat Red Hat OpenShift Container Platform for Power
Red Hat Red Hat OpenShift Container Platform

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Red Hat build of MicroShift to a version that resolves this vulnerability.

    Fixed in 4.21.40

Event History

Oct 26, 2026
Advisory Published
via Red Hat·06:08 PM
Data Sourced
via Red Hat·06:08 PM
DescriptionSeverityAffected Software

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