CVE-2026-83231

Received Received - Intake

Helidon Unauthenticated Data Access Vulnerability

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: Oracle

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-dbclient-mongodb). Supported versions that are affected are 3.0.0-3.2.20 and 4.0.0-4.5.4. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert or delete access to some of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L).

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-15

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83231

EUVD

EUVD-2026-79583

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	helidon	From 3.0.0 (inc) to 3.2.20 (inc)
oracle	helidon	From 4.0.0 (inc) to 4.5.4 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability affects Oracle Fusion Middleware's Helidon product, specifically the helidon-dbclient-mongodb component. It impacts versions 3.0.0 to 3.2.20 and 4.0.0 to 4.5.4. An unauthenticated attacker can exploit it remotely via HTTP to gain unauthorized access to critical data or all accessible data in Helidon. The attacker could also modify or delete some data and cause a partial denial of service.

Detection Guidance

Detecting this vulnerability requires checking if your Helidon versions are within the affected range (3.0.0-3.2.20 or 4.0.0-4.5.4). Review installed Helidon components and compare versions against the affected releases.

Impact Analysis

If you use the affected Helidon versions, an attacker could steal sensitive data, alter or delete important information, or disrupt services. This could lead to data breaches, financial loss, or operational downtime for systems relying on Helidon.

Compliance Impact

This vulnerability could lead to unauthorized access or exposure of personal or sensitive data, violating GDPR and HIPAA requirements. Organizations may face legal penalties, fines, or reputational damage due to non-compliance if this vulnerability is exploited.

Mitigation Strategies

Upgrade Helidon to a version outside the affected range (3.0.0-3.2.20 or 4.0.0-4.5.4). Apply the latest patches from Oracle to address the vulnerability. Ensure network access controls restrict unauthorized HTTP access to Helidon services.

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