Red Hat Security AdvisoryRHSA-2026:66353
OpenShift Container Platform 4.21.33 security and extras update
Released 2026-09-15 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat OpenShift Container Platform 4.21 registry.redhat.io/openshift4/ose-clusterresourceoverride-rhel9-operator, registry.redhat.io/openshift4/ose-smb-csi-driver-rhel9, registry.redhat.io/openshift4/ose-smb-csi-driver-rhel9-operator
Fixes 1 record
Priority MEDIUM 40
When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0084 · Published 2026-05-07 · Partial fix · 0.53.0, 1.25.10 +1 CWE-835
