RHSA-2026:48676 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.20.32 is now available with updates to packages and images that fix several bugs and add enhancements.

This release includes a security update for Red Hat OpenShift Container Platform 4.20.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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 4.20.32. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2026:48673

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/openshift_container_platform/4.20/html/release_notes/

Solution

For OpenShift Container Platform 4.20 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/release_notes/

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

The sha values for the release are as follows:

(For x86_64 architecture)
The image digest is sha256:d03909e954e9a6d24900809750bd39f5f69d8a9e480eec97d481b9977c430d4d

(For s390x architecture)
The image digest is sha256:e6f55f9d85db6b096864b17c4a589b82b41a38e2b817651d61c7deaae09f9995

(For ppc64le architecture)
The image digest is sha256:6523a0a01258f0d0862d14fd77333fa475abfd8559fdc3ff3225b9b64fc9c31d

(For aarch64 architecture)
The image digest is sha256:907f840289ef117890d19775bdde1ca03111a40e986824b12457a865929e91b9

All OpenShift Container Platform 4.20 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html-single/updating_clusters/index#updating-cluster-cli.

Affected Products

• Red Hat OpenShift Container Platform

Fixes

• BZ -
• BZ -
• BZ -
• https://redhat.atlassian.net/browse/OCPBUGS-85155 - Fix e2e tests to work on platforms with unmanaged DNS
• https://redhat.atlassian.net/browse/OCPBUGS-92029 - Skopeo install script is redundant
• https://redhat.atlassian.net/browse/OCPBUGS-93807 - Autosizing causes control plane node to reboot twice during upgrade
• https://redhat.atlassian.net/browse/OCPBUGS-98746 - OCL test suite has some flakes
• https://redhat.atlassian.net/browse/OCPBUGS-98968 - [release-4.20] Bump to Istio v1.26.8
• https://redhat.atlassian.net/browse/OCPBUGS-98986 - [4.20] Automatically logged out of the OpenShift web console too frequently
• https://redhat.atlassian.net/browse/OCPBUGS-99167 - [release-4.20] Insights popup severity links don't show issue count on Cluster Dashboard
• https://redhat.atlassian.net/browse/OCPBUGS-99402 - [release-4.20] - Kube-state metrics pod is in Error state as failing to parse the cron job schedule
• https://redhat.atlassian.net/browse/OCPBUGS-99449 - Alertmanager crashes when the configuration includes mute/active intervals with a timezone location
• https://redhat.atlassian.net/browse/OCPBUGS-99788 - [release-4.20]: Missing RELATED_IMAGE for runtime-extractor on HyperShift
• https://redhat.atlassian.net/browse/OCPBUGS-99902 - /etc/localtime /usr/share/zoneinfo vanished from ART base images in 4.20.29 4.21.24 4.22.0

CVEs

• CVE-2026-16242
• CVE-2026-34986
• CVE-2026-49978

References

• https://access.redhat.com/security/updates/classification/