SB2026040931 - Improper Certificate Validation in Red Hat OpenShift Container Platform 4.18 packages
Published: April 9, 2026
Security Bulletin ID
SB2026040931
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2025-68121)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper certificate validation within HTTP/3 connections. A remote attacker can cause cause a client to resume a session with a server that it would not have resumed with during the initial handshake
Remediation
Install update from vendor's website.