Lucene search
+L
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Settings
Sign in

Important: Red Hat Security Advisory: OpenShift Container Platform 4.21.17 bug fix and security update

🗓️ 26 May 2026 09:07:54Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 29 Views

Red Hat OpenShift 4.21.17 fixes bugs and adds enhancements with an important security update.

Related
Refs
ReporterTitlePublishedViews
Family
osv
OSV		CLEANSTART-2026-VZ08395 Security fixes for CVE-2026-24051, CVE-2026-27139, CVE-2026-27141, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, CVE-2026-32289, CVE-2026-33186, CVE-2026-33810, CVE-2026-39883, ghsa-9h8m-3fm2-qjrq, ghsa-p77j-4mvh-x3m3 applied in versions: 3.6.0-r3, 3.6.0-r4
18 May 202613:47
–osv
osv
OSV		CLEANSTART-2026-VZ76006 Security fixes for CVE-2021-3538, CVE-2025-29923, CVE-2025-61726, CVE-2025-61728, CVE-2025-61730, CVE-2025-68121, CVE-2026-24051, CVE-2026-27139, CVE-2026-27142, CVE-2026-33186 applied in versions: 3.0.0.1-r3, 3.0.0.1-r4, 3.0.0.1-r5
1 Apr 202609:36
–osv
osv
OSV		CLEANSTART-2026-VZ85637 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate
25 Feb 202600:50
–osv
osv
OSV		CLEANSTART-2026-WA03770 Security fixes in kyverno-policy-reporter-fips 3.3.3-r4
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-WA14162 Delete function fails to properly validate offsets when processing malformed JSON input
14 Apr 202600:42
–osv
osv
OSV		CLEANSTART-2026-WA48911 authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users
11 Jun 202600:51
–osv
osv
OSV		CLEANSTART-2026-WA84208 Boolean XPath expressions that evaluate to true can cause an infinite loop in logicalQuery
15 Apr 202600:49
–osv
osv
OSV		CLEANSTART-2026-WB12909 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
16 Apr 202601:02
–osv
osv
OSV		CLEANSTART-2026-WB89098 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
30 Apr 202600:58
–osv
osv
OSV		CLEANSTART-2026-WC52751 Security fixes in consul 1.22.5-r0
30 Jul 202607:10
–osv
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a live demo
29 Aug 2026 02:38Current
7.2High risk
Vulners AI Score7.2
CVSS 3.19.1 - 9.8
CVSS 48.7
EPSS0.01557
SSVC
OpenShift 4.21.17security updateimportant impactcontainer imagessystem packagesrelease notes
29