RHSA-2026:57402HighCVSS 8.2

Red Hat Security Advisory: OpenShift Container Platform 4.19.44 bug fix and security update

Published
August 26, 2026
Last Modified
August 26, 2026

🔗 CVE IDs covered (11)

CVE-2026-43112 →CVE-2026-46483 →CVE-2025-54518 →CVE-2026-3833 →CVE-2026-29111 →CVE-2026-33846 →CVE-2026-34982 →CVE-2026-35177 →CVE-2026-48864 →CVE-2026-33845 →CVE-2026-41411 →

📋 Description

CVE-2025-54518 — kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation CVE-2026-3833 — gnutls: GnuTLS: Policy bypass due to case-sensitive nameConstraints comparison CVE-2026-29111 — systemd: systemd: Arbitrary code execution or Denial of Service via spurious IPC API call data CVE-2026-33845 — gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment CVE-2026-33846 — gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly CVE-2026-34982 — vim: arbitrary command execution via modeline sandbox bypass CVE-2026-35177 — vim: zip.vim: Vim zip.vim plugin: Arbitrary file overwrite via path traversal bypass CVE-2026-41411 — vim: Vim: Command injection allows arbitrary code execution via malicious tag files CVE-2026-43112 — kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath CVE-2026-46483 — vim: command injection when decompressing .tgz archives CVE-2026-48864 — libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

🎯 Affected products5

  • Red Hat OpenShift Container Platform 4.19
  • rhcos-aarch64-4.19.9.6.202608182320-0 as a component of Red Hat OpenShift Container Platform 4.19
  • rhcos-ppc64le-4.19.9.6.202608182320-0 as a component of Red Hat OpenShift Container Platform 4.19
  • rhcos-s390x-4.19.9.6.202608182320-0 as a component of Red Hat OpenShift Container Platform 4.19
  • rhcos-x86_64-4.19.9.6.202608182320-0 as a component of Red Hat OpenShift Container Platform 4.19

✅ Remediation

For OpenShift Container Platform 4.19 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/4.19/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 sha256:6290a8adb6b7a43783120e845feaeaa19b9ddd685e3cbcb2724efc250978375b (For s390x architecture) The image digest is sha256:d3a37762aaaa6efbe58830ae4fa023b098f23ea601b2feba432fe3654d49cc12 (For ppc64le architecture) The image digest is sha256:22037e3d8727ed0ddb40381e4feb888c354444d6358f559615b2dd394a638907 (For aarch64 architecture) The image digest is sha256:4ce537bce3f790466b866ac23a233a885d1234e20b502a485ba511a0aa281dc9 All OpenShift Container Platform 4.19 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/4.19/html-single/updating_clusters/index#updating-cluster-cli. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: To mitigate this issue, disable the modeline support by adding the following command to the Vim configuration file: ~~~ set nomodeline ~~~ Workaround: Avoid opening untrusted zip archives with Vim. This operational control prevents the necessary user interaction required to trigger the path traversal vulnerability in the `zip.vim` plugin. Workaround: Mitigation for this issue involves exercising caution when opening or processing tag files from untrusted sources. Users should avoid loading tag files from unknown or suspicious origins to prevent the execution of arbitrary commands. Workaround: To mitigate this vulnerability, do not decompress untrusted .tgz archives with the Vimuntar command. Use 'tar -x -z -f' directly, instead.

🔗 References (15)