RHSA-2025:22724HighCVSS 8.8

Red Hat Security Advisory: OpenShift Container Platform 4.16.54 bug fix and security update

Published
December 10, 2025
Last Modified
September 8, 2026

🔗 CVE IDs covered (2)

CVE-2025-4953 →CVE-2025-11561 →

📋 Description

CVE-2025-4953 — podman: Build Context Bind Mount CVE-2025-11561 — sssd: SSSD default Kerberos configuration allows privilege escalation on AD-joined Linux systems

🎯 Affected products5

  • Red Hat OpenShift Container Platform 4.16
  • rhcos-aarch64-416.94.202512030118-0 as a component of Red Hat OpenShift Container Platform 4.16
  • rhcos-ppc64le-416.94.202512030118-0 as a component of Red Hat OpenShift Container Platform 4.16
  • rhcos-s390x-416.94.202512030118-0 as a component of Red Hat OpenShift Container Platform 4.16
  • rhcos-x86_64-416.94.202512030118-0 as a component of Red Hat OpenShift Container Platform 4.16

✅ Remediation

For OpenShift Container Platform 4.16 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/4.16/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 sha256:5efb10e511ff6623fee08dd8cfa8915b9be5cc3b7f7501731ddc13fa0d2ea988 (For s390x architecture) The image digest is sha256:2b77c206c6ab23808a1b3988f7e87f4dae14dbc57bf300e1ce1eabc945667b64 (For ppc64le architecture) The image digest is sha256:6cbdd40976744d791db379a0c6d1a4203a17cf0f31a865e19916025647b7244a (For aarch64 architecture) The image digest is sha256:c71acfbc01a33e3cce8f02f3f2354409c3a00bfdaa46f0b4f53ac8ee8e763d8a 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/openshift_container_platform/4.16/html-single/updating_clusters/index#updating-cluster-cli. Workaround: Avoid long-running build steps and overly permissive file permissions. Use RUN --mount=type=secret for sensitive data instead of bind mounts. Workaround: To mitigate this issue, ensure the SSSD Kerberos local authentication plugin (sssd_krb5_localauth_plugin) is configured and the an2ln plugin is disabled by adding "disable = an2ln" in a krb5 include file, for example /var/lib/sss/pubconf/krb5.include.d/localauth_plugin and make sure it is included in the Kerberos configuration. Apply vendor updates and follow Red Hat guidance for SSSD hardening.

🔗 References (5)