RHSA-2026:48670: OpenShift Container Platform 4.21.27 bug fix and security update
OpenShift Container Platform 4.21.27 bug fix and security update
Other sources
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.This advisory contains the container images for Red Hat OpenShift Container Platform 4.21.27. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHBA-2026:48668 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:https://docs.redhat.com/en/documentation/openshiftcontainerplatform/4.21/html/releasenotes/
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
OpenShift Container Platform 4.21to a version that resolves this vulnerability.Fixed in 4.21.27Patch RHBA-2026:48668 - Compensating control
Use the OpenShift CLI (oc) or the web console to check for available updates, and ensure the cluster is upgraded and fully applies the asynchronous errata update as documented for OpenShift Container Platform 4.21.
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:48670?
The severity of RHSA-2026:48670 is critical with a rating of 9.
How do I fix RHSA-2026:48670?
To fix RHSA-2026:48670, you should apply the latest updates for OpenShift Container Platform 4.21.27 as recommended in the advisory.
What vulnerabilities are addressed in RHSA-2026:48670?
RHSA-2026:48670 addresses multiple vulnerabilities within the Red Hat OpenShift Container Platform.
When was RHSA-2026:48670 published?
RHSA-2026:48670 was published on August 4, 2026.
What is the purpose of RHSA-2026:48670?
The purpose of RHSA-2026:48670 is to provide bug fixes and security updates for the OpenShift Container Platform 4.21.27.