RHSA-2026:7243HighCVSS 7.8

Red Hat Security Advisory: OpenShift Container Platform 4.19.28 bug fix and security update

Published
April 16, 2026
Last Modified
July 28, 2026

🔗 CVE IDs covered (7)

CVE-2026-25646 →CVE-2026-25749 →CVE-2026-28417 →CVE-2026-28421 →CVE-2026-33412 →CVE-2024-28757 →CVE-2025-61662 →

📋 Description

CVE-2024-28757 — expat: XML Entity Expansion CVE-2025-61662 — grub2: Missing unregister call for gettext command may lead to use-after-free CVE-2026-25646 — libpng: LIBPNG has a heap buffer overflow in png_set_quantize CVE-2026-25749 — vim: Vim: Arbitrary code execution via 'helpfile' option processing CVE-2026-28417 — vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin CVE-2026-28421 — vim: Vim: Denial of service and information disclosure via crafted swap file CVE-2026-33412 — vim: Vim: Arbitrary code execution via command injection in glob() function

🎯 Affected products5

  • Red Hat OpenShift Container Platform 4.19
  • rhcos-aarch64-4.19.9.6.202604080618-0 as a component of Red Hat OpenShift Container Platform 4.19
  • rhcos-ppc64le-4.19.9.6.202604080618-0 as a component of Red Hat OpenShift Container Platform 4.19
  • rhcos-s390x-4.19.9.6.202604080618-0 as a component of Red Hat OpenShift Container Platform 4.19
  • rhcos-x86_64-4.19.9.6.202604080618-0 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:b274766f7194a7dc825e335a54078790519c0dbe3431c029fd08dbba1c431855 (For s390x architecture) The image digest is sha256:066bfcb590ef6f34106e63861d420a3fdcdebd734bb729668c8c6de59b84c632 (For ppc64le architecture) The image digest is sha256:ff14e60b2b4760a6c2578e444b40f457fe2322f5211b1b838078b1fa6ea1b443 (For aarch64 architecture) The image digest is sha256:52b1e8cf83dd1a854194212cc94bfe2719afb2e014f7b1a315250a9c7273a600 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: There's no known mitigation available for this vulnerability. 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: 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.

🔗 References (10)