CVE-2026-73872: Medium severity Oracle Helidon vulnerability

Published Aug 18, 2026

Updated

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 unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Affected Software

2 affected components

Oracle Helidon=4.5.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Helidon (Oracle Fusion Middleware) - Imperative Web Server to a version that resolves this vulnerability.
Fixed in 4.0.0-4.4.1

Event History

Aug 18, 2026

CVE Published

via MITRE·09:03 PM

Data Sourced

via MITRE·09:03 PM

DescriptionSeverity

Data Sourced

via NVD·09:18 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

Who can exploit this issue?

An unauthenticated attacker with network access to the affected Helidon Imperative Web Server over HTTP can exploit it. No user interaction or prior privileges are required.

What is the impact of a successful attack?

A successful attack can provide unauthorized read access to a subset of data accessible through Helidon. The stated impact is limited to confidentiality; integrity and availability impacts are not identified.

Which version is identified as affected?

The supported affected version identified is Oracle Helidon 4.5.0.