CVE-2026-73922: 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 1.0.0-1.4.18. 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?
Helidon deployments using the Imperative Web Server component on supported version 1.4.19 are affected if they are reachable by an attacker over HTTP. The vulnerability can be exploited remotely over the network.
Does exploitation require authentication or user interaction?
No. An unauthenticated attacker can exploit the issue with network access via HTTP, and no user interaction is required.
What could an attacker do after successful exploitation?
A successful attack can allow unauthorized creation, deletion, or modification of critical data or all data accessible to Helidon. It can also allow unauthorized access to critical data or complete access to all data accessible to Helidon.