ESB-2026.4875

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4875 OpenShift Container Platform 4.12.88 bug fix and security update 11 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: OpenShift Container Platform 4.12.88 Publisher: Red Hat Operating System: Red Hat Resolution: Patch/Upgrade CVE Names: CVE-2026-22695 CVE-2026-22801 CVE-2026-28417 CVE-2026-28421 CVE-2026-25646 CVE-2026-25749 CVE-2026-4424 CVE-2026-5121 CVE-2026-33412 Original Bulletin: https://access.redhat.com/errata/RHSA-2026:12274 Comment: CVSS (Max): 7.5 CVE-2026-5121 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N EPSS (Max): 0.4% (58th) CVE-2026-4424 2026-05-10 - --------------------------BEGIN INCLUDED TEXT-------------------- RHSA-2026:12274 - Security Advisory Issued: 2026-05-08 Updated: 2026-05-08 Synopsis Openshift container platform 4.12.88 bug fix and security update Type/Severity Security Advisory: Important Topic Red Hat OpenShift Container Platform release 4.12.88 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 4.12. Red Hat Product Security has rated this update as having a security impact of Low. 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 4.12.88. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:12273 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/4.12/html /release_notes Security Fix(es): None 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 4.12 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/4.12/ html-single/updating_clusters/index#updating-cluster-within-minor. Solution For OpenShift Container Platform 4.12 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/4.12/html /release_notes You may download the oc tool and use it to inspect release image metadata for x86_64 architecture. The image digest may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags. The sha value for the release is as follows: (For x86_64 architecture) The image digest is sha256:3e68f1c5d392780d1e848c2b98dbfd9965b3dfc85b4279ca894003c6495420fd All OpenShift Container Platform 4.12 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/4.12/ html-single/updating_clusters/index#updating-cluster-within-minor. Affected Products o Red Hat OpenShift Container Platform 4.12 for RHEL 9 x86_64 o Red Hat OpenShift Container Platform 4.12 for RHEL 8 x86_64 o Red Hat OpenShift Container Platform for Power 4.12 for RHEL 9 ppc64le o Red Hat OpenShift Container Platform for Power 4.12 for RHEL 8 ppc64le o Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.12 for RHEL 9 s390x o Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.12 for RHEL 8 s390x o Red Hat OpenShift Container Platform for ARM 64 4.12 for RHEL 9 aarch64 o Red Hat OpenShift Container Platform for ARM 64 4.12 for RHEL 8 aarch64 Fixes o BZ - 2428824 - CVE-2026-22801 libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API o BZ - 2428825 - CVE-2026-22695 libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read o BZ - 2437843 - CVE-2026-25749 vim: Vim: Arbitrary code execution via 'helpfile' option processing o BZ - 2438542 - CVE-2026-25646 libpng: LIBPNG has a heap buffer overflow in png_set_quantize o BZ - 2443455 - CVE-2026-28417 vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin o BZ - 2443474 - CVE-2026-28421 vim: Vim: Denial of service and information disclosure via crafted swap file o BZ - 2449006 - CVE-2026-4424 libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing o BZ - 2450907 - CVE-2026-33412 vim: Vim: Arbitrary code execution via command injection in glob() function o BZ - 2452945 - CVE-2026-5121 libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing CVEs o CVE-2026-4424 o CVE-2026-5121 o CVE-2026-22695 o CVE-2026-22801 o CVE-2026-25646 o CVE-2026-25749 o CVE-2026-28417 o CVE-2026-28421 o CVE-2026-33412 References o https://access.redhat.com/security/updates/classification/#important - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================