Red Hat Security AdvisoryRHSA-2026:74023
OpenShift Container Platform 4.21 CNF IBU extras update
Released 2026-09-30 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat OpenShift Container Platform 4.21 registry.redhat.io/openshift4/lifecycle-agent-rhel9-operator
Fixes 2 records
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
Priority LOW 39
The RSA and DSA public key parsers did not enforce size limits on key parameters.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00467 · Published 2026-05-22 · Partial fix · 0.52.0 CWE-347
