CVE-2026-73912: Critical 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 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
Which deployments are exposed to this issue?
Oracle Helidon deployments using the Imperative Web Server component on the supported affected version, 4.5.0, are exposed if they are reachable by an attacker over HTTP.
What does an attacker need to exploit it?
An attacker needs network access to the affected service via HTTP. No authentication, privileges, or user interaction are required, and exploitation is described as easy.
What is the potential impact of a successful attack?
A successful attack can result in takeover of Helidon. The reported impact includes high compromise of confidentiality, integrity, and availability.