RHSA-2026:1062 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.18.32 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 4.18.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 4.18.32. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RH[X]A-[YYYY:NNNN]

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/

Security Fix(es):

• github.com/sirupsen/logrus: github.com/sirupsen/logrus: Denial-of-Service due to large single-line payload (CVE-2025-65637)
• python-eventlet: Eventlet HTTP request smuggling (CVE-2025-58068)

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/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.

Solution

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:<SHASUM_HERE>

(For s390x architecture)
The image digest is sha256:<SHASUM_HERE>

(For ppc64le architecture)
The image digest is sha256:<SHASUM_HERE>

(For aarch64 architecture)
The image digest is sha256:<SHASUM_HERE>

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.

Affected Products

• Red Hat OpenShift Container Platform

Fixes

• BZ - 2391958
• BZ - 2418900
• OCPBUGS-48710 - [4.18] sync 4.19 ovnk to 4.18 (dummy bug)
• OCPBUGS-55229 - HyperShift should allow KAS --goaway-chance flag to be configurable
• OCPBUGS-63451 - [release-4.18] revision.json needs to persist
• OCPBUGS-66318 - do not pass volume options as bind mounts options to runtime - Podman - [OCP 4.18]
• OCPBUGS-66379 - [4.18] Pods in openshift-apiserver are unable to parse manifest due to unexpected end of JSON input
• OCPBUGS-66972 - [4.18] Backport NTP Failover PTP-Operator
• OCPBUGS-66973 - [4.18] Backport NTP Failover linuxptp-daemon
• OCPBUGS-67238 - [4.18] Backport NTP Failover cloud-event-proxy
• OCPBUGS-69947 - 4.18: Skip stalld test checking if sched_fifo is set
• OCPBUGS-70346 - [OCP4.18][OVN-Kubernetes] stale conntrack UDP entry when deleting openshift-dns pod
• OCPBUGS-72419 - PTP BC HA The phc2sys command concatenation format is malformed
• OCPBUGS-73662 - Namespace is not persisting when switching to developer view from the topology page of admin page
• OCPBUGS-73750 - Unable to create egress ip in Openshift on azure
• OCPBUGS-73767 - High CPU usage for iptables-alerter pods
• OCPBUGS-73789 - Machine creation is not fully covered during periods of inconsistent response from AWS
• OCPBUGS-73874 - phc2sys config missing on ntpfailover recovery from GNSS loss
• OCPBUGS-73883 - 10m catalog sync interval contributes to unbounded etcd growth
• OCPBUGS-74153 - E2e test "attach on previously attached volumes should work" fails in 4.18

CVEs

• CVE-2025-58068
• CVE-2025-65637

References

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