CVE-2026-73886: High severity Oracle Helidon 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. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).
Affected Software
Event History
Frequently Asked Questions
Who is exposed to exploitation?
Helidon deployments using the affected supported version 4.5.0 are exposed if an attacker can reach the Imperative Web Server over HTTP. Exploitation does not require authentication or user interaction.
What access does an attacker gain after successful exploitation?
A successful attacker can obtain unauthorized read access to a subset of data accessible to Helidon and unauthorized update, insert, or delete access to some Helidon-accessible data. The scope change indicates attacks may also significantly affect additional products.