CVE-2026-71165

Modified Modified - Updated After Analysis

Unauthorized Data Access in Helidon via HTTP

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 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

EPSS Scores

Probability:
Percentile:

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-2026-71165

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 a low-privileged attacker with network access via HTTP to compromise the system. Successful exploitation can lead to unauthorized data access, modification, or deletion.

Detection Guidance

Detection of CVE-2026-71165 requires checking for vulnerable versions of Oracle Helidon 3.2.18. Inspect installed Helidon packages using commands like 'java -jar helidon.jar --version' or package managers (e.g., 'dpkg -l | grep helidon' on Debian). Monitor network traffic for HTTP requests targeting Helidon services.

Impact Analysis

If you use the affected Helidon version, an attacker could read or alter some of your data without proper authorization. This could lead to data breaches, unauthorized changes, or loss of sensitive information.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate compliance requirements like GDPR or HIPAA. Organizations using the affected version may face legal or regulatory penalties due to potential data breaches.

Mitigation Strategies

Update Helidon to a version that is not affected by this vulnerability. If an update is not available, consider disabling the Imperative Web Server component or restricting network access to it via firewall rules.

Hi! I’m here to help you understand CVE-2026-71165. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70