CVE-2026-83330

Name of the Vulnerable Software and Affected Versions Oracle Fusion Middleware Helidon versions 4.0.0 through 4.5.4

Description A flaw in the WebSocket component allows an unauthenticated attacker with network access via HTTP to compromise the system. This can lead to a hang or a frequently repeatable crash, resulting in a complete Denial of Service (DOS), which is a condition where the service becomes unavailable to its intended users.

Recommendations Update Oracle Fusion Middleware Helidon to a version later than 4.5.4.