CVE-2026-71152: Critical severity Helidon (Imperative Web Server) vulnerability
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17 and 4.0.0-4.4.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Helidon deployments using the Imperative Web Server component on supported version 4.5.0 are affected. An attacker needs only network access to the service over HTTP; no authentication or user interaction is required.
What is the potential impact of successful exploitation?
Successful exploitation can result in takeover of Helidon. The reported impacts include high confidentiality, integrity, and availability impact.