RHSA-2026:12274HighCVSS 7.5

Red Hat Security Advisory: OpenShift Container Platform 4.12.88 bug fix and security update

Published
May 8, 2026
Last Modified
July 28, 2026

🔗 CVE IDs covered (9)

CVE-2026-4424 →CVE-2026-28421 →CVE-2026-5121 →CVE-2026-22695 →CVE-2026-22801 →CVE-2026-25646 →CVE-2026-25749 →CVE-2026-28417 →CVE-2026-33412 →

📋 Description

CVE-2026-4424 — libarchive: libarchive: Information disclosure via heap out-of-bounds read in RAR archive processing CVE-2026-5121 — libarchive: libarchive: Arbitrary code execution via integer overflow in ISO9660 image processing CVE-2026-22695 — libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read CVE-2026-22801 — libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API 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 products2

  • Red Hat OpenShift Container Platform 4.12
  • rhcos-x86_64-412.86.202604281506-0 as a component of Red Hat OpenShift Container Platform 4.12

✅ Remediation

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. 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, avoid processing untrusted ISO9660 images with applications that utilize `libarchive`. Users should only extract or read content from ISO images obtained from trusted sources. Workaround: To mitigate this issue, users should avoid opening untrusted PNG image files. Applications that process PNG images should be configured to restrict processing of untrusted or unverified content where possible. 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 (12)