CVE-2026-71154

Modified Modified - Updated After Analysis

Helidon Imperative Web Server Information Disclosure

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 logon to the infrastructure where Helidon executes 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. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N).

CVSS Scores

EPSS 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-2026-71154

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 allows a low-privileged attacker with local access to compromise the system. Successful exploitation could lead to unauthorized access to critical data or full access to all Helidon-accessible data, as well as unauthorized modifications to some data.

Detection Guidance

Detection requires checking if Helidon 4.5.0 is installed and running. Inspect installed packages for 'oracle helidon' and verify version. Check running processes for Helidon services. No specific commands are provided in the context.

Impact Analysis

If you use Helidon 4.5.0, an attacker with local access could steal sensitive data, alter or delete data, or gain full control over the system. This could disrupt services, lead to data breaches, or cause compliance violations depending on the data processed.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Update Helidon to a version later than 4.5.0 to address the vulnerability. Apply the latest security patches from Oracle as soon as possible.

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