- Issued:
- 2026-09-10
- Updated:
- 2026-09-10
RHSA-2026:62549 - Security Advisory
Synopsis
Important: OpenShift Container Platform 4.16.70 bug fix and security update
Type/Severity
Security Advisory: Important
Topic
Red Hat OpenShift Container Platform release 4.16.70 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 4.16.
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 4.16.70. See the following advisory for the RPM packages for this release:
https://access.redhat.com/errata/RHSA-2026:62548
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/4.16/html/release_notes/
Security Fix(es):
- unbound: Unbound Cache poisoning (CVE-2025-5994)
- sqlite: Integer Truncation in SQLite (CVE-2025-6965)
- podman: Podman kube play command may overwrite host files (CVE-2025-9566)
- libxml: Heap use after free (UAF) leads to Denial of service (DoS) (CVE-2025-49794)
- libxml: Type confusion leads to Denial of service (DoS) (CVE-2025-49796)
- kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation (CVE-2025-54518)
- bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone (CVE-2026-1519)
- samba: group policy certificate enrollment uses http:// without validation (CVE-2026-3012)
- bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation (CVE-2026-3039)
- bind: BIND: Denial of Service via specially crafted DNS messages (CVE-2026-5946)
- dracut: dracut: Root code execution via DHCP options command injection (CVE-2026-6893)
- bind9: bind: Potential wildcard CNAME RPZ policy bypass (CVE-2026-11331)
- bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321)
- dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die() (CVE-2026-15816)
- golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)
- kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath (CVE-2026-43112)
- openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap (CVE-2025-9230)
- samba: vfs_worm does not block directory modification (CVE-2026-2340)
- gnutls: GnuTLS: Policy bypass due to case-sensitive nameConstraints comparison (CVE-2026-3833)
- bind: bind9: Incorrect acceptance of NSEC3 records (CVE-2026-10723)
- systemd: systemd: Arbitrary code execution or Denial of Service via spurious IPC API call data (CVE-2026-29111)
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/openshift_container_platform/4.16/html-single/updating_clusters/index#updating-cluster-cli
Solution
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 sha256:077bb2d0f053cfadc673374237b206740ab78f2663d3dbd1b49713c2ced88994
(For s390x architecture)
The image digest is sha256:a46bf8cdae866571521a66b6efa1634db5109b020ab9ed6d8de1caf815bfe25a
(For ppc64le architecture)
The image digest is sha256:6e0b33f7d8db91651807aabffce25e1cdf27f90a6240ac49bd651c64b05464c3
(For aarch64 architecture)
The image digest is sha256:e76b87d63f7b8b2960353d5cc3e7bf427b65edd8e95c8c51fbb7c12a6ea4fb34
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
Affected Products
- Red Hat OpenShift Container Platform 4.16 for RHEL 9 x86_64
- Red Hat OpenShift Container Platform for Power 4.16 for RHEL 9 ppc64le
- Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.16 for RHEL 9 s390x
- Red Hat OpenShift Container Platform for ARM 64 4.16 for RHEL 9 aarch64
Fixes
- BZ - 2372373 - CVE-2025-49794 libxml: Heap use after free (UAF) leads to Denial of service (DoS)
- BZ - 2372385 - CVE-2025-49796 libxml: Type confusion leads to Denial of service (DoS)
- BZ - 2380149 - CVE-2025-6965 sqlite: Integer Truncation in SQLite
- BZ - 2380949 - CVE-2025-5994 unbound: Unbound Cache poisoning
- BZ - 2393152 - CVE-2025-9566 podman: Podman kube play command may overwrite host files
- BZ - 2396054 - CVE-2025-9230 openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap
- BZ - 2445763 - CVE-2026-3833 gnutls: GnuTLS: Policy bypass due to case-sensitive nameConstraints comparison
- BZ - 2447318 - CVE-2026-2340 samba: vfs_worm does not block directory modification
- BZ - 2447319 - CVE-2026-3012 samba: group policy certificate enrollment uses http:// without validation
- BZ - 2450505 - CVE-2026-29111 systemd: systemd: Arbitrary code execution or Denial of Service via spurious IPC API call data
- BZ - 2451305 - CVE-2026-1519 bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone
- BZ - 2459963 - CVE-2026-6893 dracut: dracut: Root code execution via DHCP options command injection
- BZ - 2467015 - CVE-2026-43112 kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath
- BZ - 2477784 - CVE-2025-54518 kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation
- BZ - 2479767 - CVE-2026-3039 bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation
- BZ - 2479771 - CVE-2026-5946 bind: BIND: Denial of Service via specially crafted DNS messages
- BZ - 2480756 - CVE-2026-39821 golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing
- BZ - 2500889 - CVE-2026-15816 dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die()
- BZ - 2503721 - CVE-2026-11331 bind9: bind: Potential wildcard CNAME RPZ policy bypass
- BZ - 2504166 - CVE-2026-13321 bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field
- BZ - 2504560 - CVE-2026-10723 bind: bind9: Incorrect acceptance of NSEC3 records
CVEs
- CVE-2025-5994
- CVE-2025-6965
- CVE-2025-9230
- CVE-2025-9566
- CVE-2025-49794
- CVE-2025-49796
- CVE-2025-54518
- CVE-2026-1519
- CVE-2026-2340
- CVE-2026-3012
- CVE-2026-3039
- CVE-2026-3833
- CVE-2026-5946
- CVE-2026-6893
- CVE-2026-10723
- CVE-2026-11331
- CVE-2026-13321
- CVE-2026-15816
- CVE-2026-29111
- CVE-2026-39821
- CVE-2026-43112
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/