CVE-2026-73911

Modified Modified - Updated After Analysis

Path Traversal 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 4.0.0-4.4.1. 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

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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-2026-73911

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 is a vulnerability in Oracle Fusion Middleware's Helidon product, specifically in the Imperative Web Server component. It affects version 4.5.0 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-2026-73911 requires checking for vulnerable versions of Oracle Helidon 4.5.0. Inspect installed Helidon packages using commands like 'find / -name *helidon* 2>/dev/null' or package managers such as 'dpkg -l | grep helidon' (Debian) or 'rpm -qa | grep helidon' (RHEL). Verify version via 'java -jar helidon.jar --version' if applicable.

Impact Analysis

An attacker could read or alter some of your Helidon-accessible data without proper authorization. This could lead to data leaks, data corruption, or unauthorized changes to system configurations, depending on the exposed data.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate compliance requirements such as GDPR (data protection) or HIPAA (health information privacy). Organizations using Helidon must address this to maintain regulatory compliance.

Mitigation Strategies

Update Helidon to a version later than 4.5.0 to address the vulnerability. Ensure network access controls restrict HTTP access to only trusted sources. Monitor for unauthorized data access attempts.

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