Red Hat Security Advisory

RHSA-2026:89818

Red Hat build of MicroShift 4.21.40 security update

Released 2026-10-26 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat OpenShift Container Platform 4.21 microshift-4.21.40-202610260627.p0.g728ad5e.assembly.4.21.40.el9, microshift-ai-model-serving-4.21.40-202610260627.p0.g728ad5e.assembly.4.21.40.el9, microshift-ai-model-serving-release-info-4.21.40-202610260627.p0.g728ad5e.assembly.4.21.40.el9 +16

TI-2026-78632 CVE-2026-111943

LOW 32

On most platforms, Go uses the given system root certificates.

CVSS 3.1MEDIUM 6.8 Network No auth User interaction EPSS 0.00396 Published 2026-10-21 Partial fix · 1.26.10, 1.27.3 CWE-299