CVE-2026-73902: High severity Oracle Helidon vulnerability
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this issue?
Helidon deployments using the Imperative Web Server component on supported version 3.2.19 are affected. An attacker needs only network access to the server over HTTP; authentication and user interaction are not required.
What is the likely impact of successful exploitation?
Successful exploitation can cause Helidon to hang or crash repeatedly, resulting in a complete denial of service. The provided CVSS vector indicates no stated confidentiality or integrity impact.