CVE-2026-73913

Modified Modified - Updated After Analysis

Unauthorized Data Access in Oracle Helidon

Publication date: 2026-08-18

Last updated on: 2026-08-28

Assigner: Oracle

Description

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 low privileged attacker with network access via HTTP to compromise Helidon. 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 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

CVSS Scores

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Meta Information

Published

2026-08-18

Last Modified

2026-08-28

Generated

2026-09-08

AI Q&A

2026-08-19

EPSS Evaluated

2026-09-06

NVD

CVE-2026-73913

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	helidon	4.5.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Fusion Middleware's Helidon product, specifically version 4.5.0. It is an easily exploitable issue that allows a low-privileged attacker with network access via HTTP to compromise the system. Successful exploitation can lead to unauthorized data modifications (insert, update, delete) and unauthorized data access (read).

Detection Guidance

Detection requires checking for vulnerable versions of Oracle Helidon 4.5.0. Inspect installed Helidon packages using commands like 'mvn dependency:tree' for Java projects or package managers like 'dpkg -l' or 'rpm -qa' on Linux systems. Monitor network traffic for unusual HTTP requests targeting Helidon endpoints.

Impact Analysis

If you use Helidon 4.5.0, an attacker could gain access to sensitive data or alter it without proper authorization. This could lead to data breaches, loss of confidentiality, or integrity issues in your system.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, which may violate GDPR (data protection) and HIPAA (health data privacy) requirements. Non-compliance risks fines or legal consequences.

Mitigation Strategies

Apply the latest security patches or updates for Oracle Helidon version 4.5.0 from Oracle. Restrict network access to the Imperative Web Server component via HTTP. Monitor for unauthorized data access or modifications. Consider upgrading to a non-vulnerable version if available.

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