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Important: Red Hat Security Advisory: OpenShift Container Platform 4.20.26 bug fix and security update

🗓️ 23 Jun 2026 08:26:48Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 26 Views

OpenShift Container Platform 4.20.26 release includes bug fixes and an important security update.

Related
Refs
ReporterTitlePublishedViews
Family
osv
OSV		CLEANSTART-2026-JZ36078 Security fixes in istio 1.29.1-r0
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-KA15295 Security fixes for CVE-2026-24051, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-33186, ghsa-9h8m-3fm2-qjrq, ghsa-p77j-4mvh-x3m3 applied in versions: 3.7.0-r0, 3.7.0.-r1
1 Apr 202609:27
–osv
osv
OSV		CLEANSTART-2026-KB08955 Security fixes for CVE-2025-61729, CVE-2026-25680, CVE-2026-25681, CVE-2026-27136, CVE-2026-27140, CVE-2026-27143, CVE-2026-27144, CVE-2026-27145, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32288, CVE-2026-32289, CVE-2026-33186, CVE-2026-33810, CVE-2026-33811, CVE-2026-33814, CVE-2026-39820, CVE-2026-39821, CVE-2026-39822, CVE-2026-39823, CVE-2026-39825, CVE-2026-39826, CVE-2026-39827, CVE-2026-39828, CVE-2026-39829, CVE-2026-39830, CVE-2026-39831, CVE-2026-39832, CVE-2026-39833, CVE-2026-39834, CVE-2026-39835, CVE-2026-39836, CVE-2026-42499, CVE-2026-42501, CVE-2026-42502, CVE-2026-42504, CVE-2026-42505, CVE-2026-42506, CVE-2026-42507, CVE-2026-42508, CVE-2026-46595, CVE-2026-46597, CVE-2026-46598, CVE-2026-46600, CVE-2026-56852, ghsa-p77j-4mvh-x3m3 applied in versions: 1.0.1-r0, 1.1.0-r0, 1.1.0-r1, 1.1.2-r2, 1.1.2-r3
21 Jul 202607:01
–osv
osv
OSV		CLEANSTART-2026-KC83705 During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions
15 Apr 202600:53
–osv
osv
OSV		CLEANSTART-2026-KC95386 Security fixes in opentelemetry-collector-contrib 0.149.0-r0
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-KD85421 Security fixes in percona-xtradb-cluster-operator-fips 1.18.0-r4
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-KI68145 Security fixes in cloudnative-pg 1.26.3-r1
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-KI83481 Security fixes in prometheus-mongodb-exporter-fips 0.47.2-r1
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-KJ21484 Security fixes in argo-events 1.6.3-r1
13 Aug 202612:10
–osv
osv
OSV		CLEANSTART-2026-KJ23421 Security fixes in gitlab-runner 18.11.1-r0
30 Jul 202607:10
–osv
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29 Aug 2026 02:40Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.19.1 - 9.8
CVSS 48.7
EPSS0.01557
SSVC
OpenShift Container Platformbug fixessecurity updatecontainer imagesrelease notesadvisory 27059
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