CVE-2026-73870: Medium severity Oracle Helidon (Oracle Fusion Middleware) - 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 vulnerability?
An unauthenticated attacker with network access to the affected Helidon Imperative Web Server can attempt exploitation over HTTP. No attacker privileges are required, but successful exploitation requires interaction by a person other than the attacker.
Which version is identified as affected?
The supported affected version identified is Helidon 4.5.0 in the Imperative Web Server component of Oracle Fusion Middleware.
What is the potential impact of a successful attack?
A successful attack can allow unauthorized read access to a subset of Helidon-accessible data and unauthorized update, insert, or delete access to some Helidon-accessible data. The impact may also extend significantly to additional products because the vulnerability has scope change.