CVE-2026-73885

Modified Modified - Updated After Analysis

Unauthenticated Data Access 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. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). 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 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/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-2026-73885

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 Helidon's Imperative Web Server (version 3.2.18). It allows unauthenticated attackers to remotely access and manipulate data through HTTP requests. The flaw enables unauthorized read, update, insert, or delete operations on accessible data within Helidon.

Detection Guidance

Since no specific detection methods or commands are provided in the CVE details, general network scanning and vulnerability assessment tools like Nmap or Nessus may help identify vulnerable Helidon instances. Check for exposed HTTP services on port 80 or 443 and verify Helidon version 3.2.18.

Impact Analysis

An attacker could exploit this to access sensitive data, modify or delete records, or insert malicious data. Since Helidon is part of Oracle Fusion Middleware, impacts may extend to other connected systems, potentially disrupting services or leaking confidential information.

Compliance Impact

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

Mitigation Strategies

Upgrade Helidon to a version later than 3.2.18, as the vulnerability affects only version 3.2.18. Apply Oracle Fusion Middleware patches if available. Restrict network access to Helidon services via firewalls or network segmentation. Monitor for unusual HTTP traffic or unauthorized data access attempts.

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