CVE-2026-73916

Modified Modified - Updated After Analysis

Unauthenticated 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 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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

2026-09-07

NVD

CVE-2026-73916

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	helidon	3.2.18

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 is a vulnerability in Oracle Fusion Middleware's Helidon product, specifically in the Imperative Web Server component. It affects version 3.2.18 and allows unauthenticated attackers to remotely exploit it via HTTP. Successful exploitation can lead to unauthorized data creation, deletion, or modification, as well as unauthorized access to critical or all accessible data.

Detection Guidance

Since no specific detection methods or commands are provided in the CVE details, general network scanning tools like Nmap or vulnerability scanners such as Nessus can be used to check for vulnerable versions of Oracle Helidon. Look for systems running Helidon 3.2.18 exposed via HTTP.

Impact Analysis

If you use the affected Helidon version, an attacker could gain full access to your system's data, modify or delete critical information, or steal sensitive data. This could lead to data breaches, loss of confidential information, or system compromise.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations due to unauthorized data access or modification. It may result in data breaches, loss of protected health information, or failure to maintain data integrity, potentially leading to legal penalties or fines.

Mitigation Strategies

Upgrade Helidon to a version unaffected by this vulnerability. If upgrading is not immediately possible, restrict network access to the Imperative Web Server component via firewalls or network segmentation. Monitor for unusual data access or modification patterns.

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