Red Hat Security AdvisoryRHSA-2026:54583
OpenShift Container Platform 4.20.34 bug fix and security update
Released 2026-08-18 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat OpenShift Container Platform 4.20 registry.redhat.io/openshift4/ose-cli-rhel9, registry.redhat.io/openshift4/ose-console-rhel9, registry.redhat.io/openshift4/ose-haproxy-router-rhel9 +2
Fixes 7 records
Priority MEDIUM 40
Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00798 · Published 2026-05-07 · Partial fix · 1.25.10, 1.26.3
Priority MEDIUM 40
Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00784 · Published 2026-05-07 · Partial fix · 1.25.10, 1.26.3 CWE-770
Priority LOW 34
A flaw was found in the OpenShift Router.
CVSS 3.1HIGH 7.7· Network · Low privileges · No interaction · EPSS 0.00396 · Published 2026-05-29 · Partial fix · 1789938693, 1788578875 +4 CWE-918
Priority LOW 33
A Server-Side Request Forgery and supply chain flaw was found in the OpenShift Console Helm catalog proxy.
CVSS 3.1HIGH 7.4· Network · Low privileges · No interaction · EPSS 0.00473 · Published 2026-08-11 · Fixed in 1786511587, 1786477760 +9 CWE-918
Priority LOW 33
An authenticated SSRF flaw was found in the OpenShift Console Dev Console webhook helpers.
CVSS 3.1HIGH 7.4· Network · Low privileges · No interaction · EPSS 0.00472 · Published 2026-08-11 · Fixed in 1787056403, 1787028559 +7 CWE-918
Priority LOW 27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00223 · Published 2026-05-22 · Partial fix · 0.55.0 CWE-1021
Priority LOW 25
OpenStack Ironic through before 37.0.1 allows creation or modification of nodes cross-project without authorization.
CVSS 3.1MEDIUM 5.5· Network · High privileges · No interaction · EPSS 0.00408 · Published 2026-07-10 · Partial fix · 29.0.6, 32.0.2 +2 CWE-862