CVE-2026-71154: Medium 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 4.0.0-4.4.1. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Helidon executes to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert or delete access to some of Helidon accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Helidon Imperative Web Server deployments running the affected supported version, 4.5.0, are exposed when an attacker can log on to the infrastructure where Helidon executes. The attacker must already have low-level privileges on that infrastructure.
Does exploitation require user interaction or network access?
No user interaction is required. The CVSS vector identifies the attack vector as local, so the attacker needs local access to the infrastructure hosting Helidon rather than remote network-only access.
What could a successful attacker access or change?
A successful attack can provide unauthorized access to critical data or complete access to all data accessible to Helidon. It can also allow unauthorized update, insertion, or deletion of some data accessible to Helidon.