ESB-2026.5797

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.5797 OpenShift Container Platform 4.19.32 bug fix and security update 28 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: OpenShift Container Platform 4.19.32 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2026-35469 CVE-2025-61726 CVE-2026-33186 CVE-2026-40175 CVE-2026-4800 CVE-2025-66031 CVE-2026-27143 CVE-2026-27144 CVE-2026-29063 CVE-2026-25679 CVE-2026-22029 CVE-2026-34986 CVE-2026-34043 CVE-2025-12816 Original Bulletin: https://access.redhat.com/errata/RHSA-2026:20041 Comment: CVSS (Max): 9.1 CVE-2026-33186 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N EPSS (Max): 0.1% (23rd) CVE-2026-29063 2026-05-27 - --------------------------BEGIN INCLUDED TEXT-------------------- RHSA-2026:20041 - Security Advisory Issued: 2026-05-27 Updated: 2026-05-27 Synopsis Container platform 4.19.32 bug fix and security update Type/Severity Security Advisory: Important Topic Red Hat OpenShift Container Platform release 4.19.32 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 4.19. 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. 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 4.19.32. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:20039 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/4.19/html /release_notes/ Solution For OpenShift Container Platform 4.19 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/4.19/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 sha256:1bd5ad0745f446a798a4038e4d04cf651213f71bc4e76dd9349f5c6968135f9b (For s390x architecture) The image digest is sha256:c0b1bd753ef517c8636c84deee39f659075cd5dc8df654e6c1bc3f2238fe0a25 (For ppc64le architecture) The image digest is sha256:5fbe6fe21a35a4541ce893b558425dc362678b74521a8cc3ead986f4e7a8021c (For aarch64 architecture) The image digest is sha256:34e28f68135a822d581cb955afb867f600d83e9ed8dd4284847df24e90802d6d All OpenShift Container Platform 4.19 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/4.19/html-single/ updating_clusters/index#updating-cluster-cli. Fixes o BZ - 2417097 o BZ - 2417397 o BZ - 2428412 o BZ - 2434432 o BZ - 2445291 o BZ - 2445356 o BZ - 2449833 o BZ - 2453284 o BZ - 2453496 o BZ - 2455470 o BZ - 2456340 o BZ - 2456342 o BZ - 2457432 o BZ - 2457729 o OCPBUGS-74397 - 4.19 HCP KubeVirt Console/Ingress Degraded After Enabling routingViaHost and ipForwarding on Guest Cluster o OCPBUGS-78035 - [4.19] Snapshots of 'disk.csi.azure.com' UltraSSD_LRS PVs periodically exceed the hard coded 10 minute timeout o OCPBUGS-78059 - [release-4.19] console-plugin-template is using an old version of the SDK o OCPBUGS-81482 - [4.19] linuxptp-daemon is not prepared to run kernel with mr 5470 o OCPBUGS-81738 - Unable to edit secret via console on 4.19.12 o OCPBUGS-83496 - [release-4.19] Developer View Observability Tabs Disappear After OCP 4.20.12 Upgrade o OCPBUGS-84042 - [Automated] Update AMI Whitelist o OCPBUGS-84143 - 4.19 - CNO fails to start with "host must be a URL or a host:port pair" o OCPBUGS-84177 - Control Plane Upgrade unable to complete with zero worker nodes [4.19 backport] o OCPBUGS-84242 - [4.19] Operator mirroring creates uncertainty because of tags. o OCPBUGS-84634 - Migration from Yarn Classic (v1) to NPM [4.19] o OCPBUGS-85018 - [Automated] Update AMI Whitelist o OCPBUGS-85248 - [release-4.19] Multus: error getting k8s client: host must be a URL or a host:port pair: "https://[10.43.0.1]:443" o OCPBUGS-85275 - [4.19] Cluster degrades when deleting all three control plane machines simultaneously (regression from 4.17) o OCPBUGS-85308 - vSphere plugin - incorrect handling of settings. o OCPBUGS-85404 - ovn-ipsec-host creates duplicate openssl attribute o OCPBUGS-85438 - [4.19] e2e: Add irqbalance StartLimitBurst >= 100 config test o OCPBUGS-85581 - MCD reports content mismatch on several nodes & clusters, blocking 4.18.36 upgrade o OCPBUGS-86166 - 4.19: Verify job in aws-ebs-csi-driver insists on current copyright year CVEs o CVE-2025-12816 o CVE-2025-61726 o CVE-2025-66031 o CVE-2026-22029 o CVE-2026-25679 o CVE-2026-27143 o CVE-2026-27144 o CVE-2026-29063 o CVE-2026-33186 o CVE-2026-34043 o CVE-2026-34986 o CVE-2026-35469 o CVE-2026-40175 o CVE-2026-4800 References o https://access.redhat.com/security/updates/classification/ - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================