CVE-2026-71158: High severity Oracle 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. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this issue?
Deployments using the affected supported Helidon Imperative Web Server version 3.2.18 are exposed if they are reachable by an attacker over HTTP. The vulnerability can be exploited remotely without authentication or user interaction.
What could an attacker gain from successful exploitation?
Successful exploitation can provide unauthorized access to critical data or complete access to all data accessible through Helidon. The stated impact is limited to confidentiality; no integrity or availability impact is specified.
Does exploitation require credentials or a complex attack path?
No. The CVSS vector indicates network access, low attack complexity, no privileges required, and no user interaction.