CVE-2026-73867

Received Received - Intake

Unauthenticated Data Access in Helidon

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Oracle

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 3.2.18. Easily exploitable vulnerability allows unauthenticated 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 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-18

Last Modified

2026-08-18

Generated

2026-08-19

AI Q&A

2026-08-19

EPSS Evaluated

N/A

NVD

CVE-2026-73867

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	helidon	3.2.18

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

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 access and manipulate data through HTTP requests. The vulnerability has a CVSS score of 6.5, indicating moderate risk with potential impacts on confidentiality and integrity.

Detection Guidance

Detecting this vulnerability requires checking for vulnerable versions of Oracle Helidon 3.2.18. Use commands like 'curl -v http://<target>:<port>/' to inspect server headers for Helidon version. Check application logs for unusual HTTP requests targeting the Imperative Web Server component.

Impact Analysis

An attacker could exploit this to read or modify some of your Helidon-accessible data without authentication. This could lead to unauthorized access to sensitive information or unauthorized changes to data, potentially disrupting services or leaking confidential data.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, which may violate GDPR (data protection) or HIPAA (health data privacy) requirements. Organizations using affected Helidon versions may face compliance violations, legal penalties, or reputational damage if exploited.

Mitigation Strategies

Immediately upgrade Oracle Helidon to a version beyond 3.2.18. If upgrading is not possible, restrict network access to the Imperative Web Server via firewall rules or disable the service if unused. Monitor for suspicious activity in logs.

Hi! I’m here to help you understand CVE-2026-73867. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70