CVE-2026-73916: Critical severity Oracle Helidon vulnerability
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Deployments running the affected supported Helidon version 3.2.18 using the Imperative Web Server are exposed if an attacker can reach the server over HTTP.
What does an attacker need to exploit it?
The attacker needs network access via HTTP. No authentication, privileges, or user interaction are required.
What is the potential impact of successful exploitation?
An attacker may gain unauthorized access to critical data or all data accessible to Helidon, and may create, modify, or delete critical data or all Helidon-accessible data.