CVE-2023-4958: Red Hat Advanced Cluster Security

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

In Red Hat Advanced Cluster Security (RHACS), it was found that some security related HTTP headers were missing, allowing an attacker to exploit this with a clickjacking attack. An attacker could exploit this by convincing a valid RHACS user to visit an attacker-controlled web page, that deceptively points to valid RHACS endpoints, hijacking the user's account permissions to perform other actions.

Affected products

• Red Hat Advanced Cluster Security: version 3.0 only; version 4.0 only

Published 2023-12-12. Last modified 2026-06-17.