CVE-2026-73898: Medium 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 require human interaction from a person other than the attacker and 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 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue, and what access do they need?
An unauthenticated attacker with network access to the affected Helidon Imperative Web Server can exploit the vulnerability over HTTP. No prior account or privileges are required.
Does exploitation require user interaction?
Yes. Successful exploitation requires interaction by a person other than the attacker.
What is the potential impact if exploitation succeeds?
An attacker may gain unauthorized read access to a subset of Helidon-accessible data and unauthorized ability to update, insert, or delete some of that data. The impact may also extend significantly to additional products because the vulnerability has a scope change.
Which version is identified as affected?
The supported affected version identified is Helidon Imperative Web Server 4.5.0.