CVE-2026-71164

Modified Modified - Updated After Analysis

Remote Code Execution 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 takeover of Helidon. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

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-2026-71164

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 critical vulnerability in Oracle Helidon 3.2.18's Imperative Web Server. It allows unauthenticated attackers to remotely compromise the system via HTTP, potentially leading to full system takeover. The vulnerability has a CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability.

Detection Guidance

Detection requires checking for vulnerable versions of Oracle Helidon 3.2.18. Inspect installed packages or application logs for Helidon 3.2.18. Use network scanning tools like Nmap to identify services running on HTTP ports. Monitor for unusual network traffic or unauthorized access attempts targeting Helidon endpoints.

Impact Analysis

If you use Oracle Helidon 3.2.18, an attacker could exploit this to gain complete control over your system. This could lead to data breaches, unauthorized access, system manipulation, or denial of service. The impact is severe due to the high CVSS score and lack of authentication requirements.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, and other regulations due to potential data breaches and loss of confidentiality. Organizations using affected Helidon versions may face legal penalties, reputational damage, and mandatory breach notifications.

Mitigation Strategies

Upgrade Helidon to a version later than 3.2.18 as it is affected. Apply Oracle's security patches immediately if available. Restrict network access to Helidon services via firewalls or network segmentation. Monitor for unusual activity or unauthorized access attempts.

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