CVE-2026-73907: 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
Which deployments are exposed to this issue?
Oracle Helidon deployments using the Imperative Web Server component on the affected supported version, 3.2.18, are exposed when they are reachable by an attacker over HTTP.
Does exploitation require authentication or user interaction?
No. The vulnerability is described as easily exploitable by an unauthenticated attacker with network access via HTTP, and it does not require user interaction.
What is the likely impact of a successful attack?
A successful attack can result in unauthorized access to critical data or complete access to all data accessible through Helidon. The stated impact is confidentiality only; integrity and availability impacts are not indicated.