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 RPM packages for Red Hat OpenShift Container Platform 4.21.31. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:60477 Security Fix(es): browserslist: Browserslist: Prototype pollution leading to denial of service (CVE-2026-73088) brace-expansion: Brace-expansion: Denial of Service via memory exhaustion in expand() function (CVE-2026-14257) brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation (CVE-2026-69152) net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGSMAXFRAMESIZE frame (CVE-2026-33814) js-yaml: js-yaml: Denial of Service via exponential parsing in flow collections (CVE-2026-73643) browserslist: Browserslist: Denial of Service via unbounded memory growth from distinct query results (CVE-2026-73089) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.21 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/openshiftcontainerplatform/4.21/html-single/updatingclusters/index#updating-cluster-cli.

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 4.22.12. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHBA-2026:60439 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/4.22/html/releasenotes/

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 4.14.72. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:56785 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/4.14/html/releasenotes/

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 RPM packages for Red Hat OpenShift Container Platform 4.14.72. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:56789 Security Fix(es): net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.14 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/openshiftcontainerplatform/4.14/html-single/updatingclusters/index#updating-cluster-cli.

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 4.15.68. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:56910 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/4.15/html/releasenotes/

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 RPM packages for Red Hat OpenShift Container Platform 4.16.69. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:56854 Security Fix(es): crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.16 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/openshiftcontainerplatform/4.16/html-single/updatingclusters/index#updating-cluster-cli.

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 RPM packages for Red Hat OpenShift Container Platform 4.19.44. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:57408 Security Fix(es): crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.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/openshiftcontainerplatform/4.19/html-single/updatingclusters/index#updating-cluster-cli.

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 RPM packages for Red Hat OpenShift Container Platform 4.18.54. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:57487 Security Fix(es): mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header (CVE-2026-42504) net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145) crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.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/openshiftcontainerplatform/4.18/html-single/updatingclusters/index#updating-cluster-cli.

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 RPM packages for Red Hat OpenShift Container Platform 4.15.68. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:56912 Security Fix(es): crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption (CVE-2025-68121) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.15 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/openshiftcontainerplatform/4.15/html-single/updatingclusters/index#updating-cluster-cli.

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 4.18.54. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:57482 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/4.18/html/releasenotes/

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 RPM packages for Red Hat OpenShift Container Platform 4.21.30. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:57801 Security Fix(es): crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.21 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/openshiftcontainerplatform/4.21/html-single/updatingclusters/index#updating-cluster-cli.

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 RPM packages for Red Hat OpenShift Container Platform 4.22.11. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:57365 Security Fix(es): brace-expansion: Brace-expansion: Denial of Service via memory exhaustion in expand() function (CVE-2026-14257) brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation (CVE-2026-69152) net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGSMAXFRAMESIZE frame (CVE-2026-33814) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.All OpenShift Container Platform 4.22 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/openshiftcontainerplatform/4.22/html-single/updatingclusters/index#updating-cluster-cli.

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 4.22.11. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:57361 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/4.22/html/releasenotes/

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 4.12.96. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHBA-2026:54204 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/4.12/html/releasenotes

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 4.13.70. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHBA-2026:54186 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/4.13/html/releasenotes

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 4.19.43. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:54552 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/4.19/html/releasenotes/

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 4.18.53. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHBA-2026:54543 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/4.18/html/releasenotes/

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 RPM packages for Red Hat OpenShift Container Platform 4.19.43. See the following advisory for the container images for this release:https://access.redhat.com/errata/RHSA-2026:54555 Security Fix(es): golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted AES-GCM packet decoder inputs (CVE-2026-46597) js-yaml: js-yaml: Denial of Service via crafted YAML documents (CVE-2026-59869) net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.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/openshiftcontainerplatform/4.19/html-single/updatingclusters/index#updating-cluster-cli.

Important: OpenShift Container Platform 4.21.29 bug fix and security update

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 4.22.10. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHBA-2026:54768 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/4.22/html/releasenotes/

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 4.20.34. See the following advisory for the RPM packages for this release:https://access.redhat.com/errata/RHSA-2026:54580 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/4.20/html/releasenotes/

OpenShift Container Platform 4.14.71 bug fix and security update

OpenShift Container Platform 4.19.42 bug fix and security update

OpenShift Container Platform 4.18.52 bug fix and security update

OpenShift Container Platform 4.20.33 bug fix and security update

OpenShift Container Platform 4.17.56 bug fix and security update

OpenShift Container Platform 4.19.41 bug fix and security update

OpenShift Container Platform 4.22.8 bug fix and security update

OpenShift Container Platform 4.15.67 bug fix and security update

OpenShift Container Platform 4.14.70 bug fix and security update