RHSA-2026:5133 - Security Advisory

标题

Red Hat OpenShift Container Platform release 4.18.36 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 4.18.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

描述

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

https://access.redhat.com/errata/RHBA-2026:5126

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/4.18/html/release_notes/

解决方案

For OpenShift Container Platform 4.18 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/4.18/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 sha256:7486ca2ec3bce0ee41dd2c03d75e120b6f660929ea50240463937ae1c4b118f7

(For s390x architecture)
The image digest is sha256:907e10c7c312b21ba21efa0bf9610da3d69a97173eefba4510699a86c27b4b1d

(For ppc64le architecture)
The image digest is sha256:d08e99e6ab216fda7fc09188df598ebedb315b49680d6490e9df0b42ab4d5e0a

(For aarch64 architecture)
The image digest is sha256:9e1da5b54dab49265e57f7e95a7c912f2ad0d32dc6b013def90cb045fd1510b3

All OpenShift Container Platform 4.18 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/4.18/html-single/updating_clusters/index#updating-cluster-cli.

修复

• BZ - 2418900
• BZ - 2430879
• BZ - 2434433
• BZ - 2437016
• BZ - 2437111
• OCPBUGS-31738 - monitor test pod-network-avalibility setup fails frequently on openstack
• OCPBUGS-36641 - [ALBO] Missing documentation about the versioning and branching
• OCPBUGS-38317 - scheduler-plugins change causes CrashLoopBackOff
• OCPBUGS-38792 - TLS errors for openshift-tests image
• OCPBUGS-42375 - OpenStack NFV jobs fail due to RDMA_CNI_IMAGE
• OCPBUGS-42409 - OpenStack tests all fail in mirror-images-qe-test-images step
• OCPBUGS-42587 - openstack-test-main-e2e-openstack-ccpmso-zone job is not properly configuring etcd on ephemeral disk
• OCPBUGS-42588 - [CI] etcd should not log excessive took too long messages
• OCPBUGS-42626 - [CI] no tests were found matching the OPENSTACK_TEST_SKIPS regex
• OCPBUGS-42833 - Telco Core Reference does not support upgrade to Cluster Logging 6.0
• OCPBUGS-54414 - descheduler namespace filtering not creating exclusions
• OCPBUGS-54807 - e2e test on platform external are failing due unsupported UDP proto on service LoadBalancer
• OCPBUGS-56485 - The Descheduler operator bundle images in 5.1.2 are missing in RHOCP 4
• OCPBUGS-74148 - nodeip-configuration not enabled on platform type external
• OCPBUGS-74982 - [4.18] Disabling chrony according to RDS leads to problems with chrony-wait.service
• OCPBUGS-75954 - [4.18] Improper namespace could affect PPC
• OCPBUGS-76532 - [Backport 4.18] Enable CVO access to OBO Prometheus for ROSA HCP with RHOBS monitoring
• OCPBUGS-76582 - openstack-cinder-csi-driver-controller-metrics prometheus target showing down for 9202 port
• OCPBUGS-76792 - MAPO unit tests fail
• OCPBUGS-77274 - Duplicate `prometheusrules.monitoring.coreos.com`
• OCPBUGS-77368 - ignition-server pods are frequently restarting
• OCPBUGS-77505 - Node stop announcing its address if the node is cordoned when using MetalLB Operator in v4.18
• OCPBUGS-77576 - mcd_config_drift not working properly
• OCPBUGS-77668 - [openshift-4.18] modify gitignore to not ignore files in vendor/
• OCPBUGS-77714 - Remove collect-profiles cronjob from microshift kustomization [4.18]
• OCPBUGS-77777 - Massive MCO container causing memory problems during bootstrapping
• OCPBUGS-77785 - gnss to ntp failover not triggered by offset spikes
• OCPBUGS-77789 - [release-4.18] insights-runtime-extractor image contains huge dnf cache
• OCPBUGS-77861 - [openshift-4.18] openshift-enterprise-console-operator can't be built hermetically
• OCPBUGS-77888 - i-c-c container image contains huge dnf cache
• OCPBUGS-77905 - [openshift-4.18] ose-azure-cluster-api-controllers can't be built hermetically
• OCPBUGS-78015 - [release-4.18] Add pperiyasamy to OWNERS for release-4.18, release-4.17, release-4.16
• OCPBUGS-78018 - [openshift-4.18] ose-vsphere-cluster-api-controllers can't be built hermetically
• OCPBUGS-78056 - machine-config-daemon is kill while updating the system-units on the node, leading to disabled system-units after reboot.
• OCPBUGS-78168 - [openshift-4.18] ose-machine-api-provider-openstack can't be built hermetically
• OCPBUGS-78378 - [openshift-4.18] ptp-operator can't be built hermetically

CVE

• CVE-2025-61731
• CVE-2025-61732
• CVE-2025-65637
• CVE-2025-68121
• CVE-2026-22797

参考

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