RHSA-2026:57409: OpenShift Container Platform 4.19.44 security and extras 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 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
OpenShift Container Platform 4.19to a version that resolves this vulnerability.Fixed in 4.19.44Patch RHSA-2026:57408
Event History
Frequently Asked Questions
Which OpenShift deployments should prioritize this update?
All Red Hat OpenShift Container Platform 4.19 users are advised to upgrade to the updated packages and images when they become available in their release channel. The advisory provides RPM packages for 4.19.44; the corresponding container images are covered by RHSA-2026:57408.
What security issues are addressed by this release?
The update addresses denial-of-service issues in Go TLS 1.3 key-update handling and certificate-chain building, as well as incorrect certificate validation during TLS session resumption. The listed CVEs are CVE-2026-32283, CVE-2026-32280, and CVE-2025-68121.
How can administrators check whether the update is available?
Administrators can use the OpenShift CLI (oc) or the web console to check for available updates. The advisory recommends upgrading packages and images through the appropriate release channel.