RHSA-2026:60440 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.22.12 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 4.22.

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 4.22.12. 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/openshift_container_platform/4.22/html/release_notes/

Security Fix(es):

• curl: curl: Insecure connection establishment due to TLS configuration

mismatch (CVE-2026-8286)

• curl: curl: Man-in-the-middle attack via SSH host key bypass

(CVE-2026-9547)

• bind9: bind: Potential wildcard CNAME RPZ policy bypass (CVE-2026-11331)
• dracut: dracut: root code execution via unescaped error message written

to sourced emergency hook script in die() (CVE-2026-15816)

• unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels

validation and premature cache writes (CVE-2026-44690)

• unbound: Unbound: Denial of Service via malformed EDNS Report-Channel

option (CVE-2026-55973)

• bind: bind9: Incorrect acceptance of NSEC3 records (CVE-2026-10723)
• kernel: smb: client: validate DFS referral PathConsumed (CVE-2026-68343)
• kbd: Local privilege escalation in openvt via incorrect process owner

verification allowing passwordless root login (CVE-2026-72693)

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/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli.

Solution

For OpenShift Container Platform 4.22 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/4.22/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:c987c0017b86a5aed02d5fa854b4649039e7221e14fca2e824dc37b2937ce7b2

(For s390x architecture)
The image digest is
sha256:e38f225c850f6fdbdaf6ac3ef1f762b1e7068da19ef3cd57a00f72554e3d0a72

(For ppc64le architecture)
The image digest is
sha256:ea726e65a0f5f8ae5b5fe4ce31f2aa75943c893c91bd75feb644c4042c88865d

(For aarch64 architecture)
The image digest is
sha256:ab1d1b8e7b22fb2a6b3923e6e8fe77b8f0f774c762836a07542b7ed5ad52d86d

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/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli.

Affected Products

• Red Hat OpenShift Container Platform 4.22 for RHEL 9 x86_64
• Red Hat OpenShift Container Platform 4.22 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for Power 4.22 for RHEL 9 ppc64le
• Red Hat OpenShift Container Platform for Power 4.22 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.22 for RHEL 9 s390x
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.22 for RHEL 8 s390x
• Red Hat OpenShift Container Platform for ARM 64 4.22 for RHEL 9 aarch64
• Red Hat OpenShift Container Platform for ARM 64 4.22 for RHEL 8 aarch64

Fixes

• BZ - 2462115 - CVE-2026-72693 kbd: Local privilege escalation in openvt via incorrect process owner verification allowing passwordless root login
• BZ - 2496758 - CVE-2026-9547 curl: curl: Man-in-the-middle attack via SSH host key bypass
• BZ - 2496763 - CVE-2026-8286 curl: curl: Insecure connection establishment due to TLS configuration mismatch
• BZ - 2500889 - CVE-2026-15816 dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
• BZ - 2503063 - CVE-2026-44690 unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes
• BZ - 2503075 - CVE-2026-55973 unbound: Unbound: Denial of Service via malformed EDNS Report-Channel option
• BZ - 2503721 - CVE-2026-11331 bind9: bind: Potential wildcard CNAME RPZ policy bypass
• BZ - 2504560 - CVE-2026-10723 bind: bind9: Incorrect acceptance of NSEC3 records
• BZ - 2513373 - CVE-2026-68343 kernel: smb: client: validate DFS referral PathConsumed

CVEs

• CVE-2026-8286
• CVE-2026-9547
• CVE-2026-10723
• CVE-2026-11331
• CVE-2026-15816
• CVE-2026-44690
• CVE-2026-55973
• CVE-2026-68343
• CVE-2026-72693

References

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