CVE-2026-73880

Modified Modified - Updated After Analysis

Privilege Escalation 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 4.0.0-4.5.0. Easily exploitable vulnerability allows high 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. CVSS 3.1 Base Score 4.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

CVSS 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-2026-73880

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	helidon	4.5.1

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 4.5.1 and allows a high-privileged attacker with local access to compromise the system. Successful exploitation could lead to unauthorized access to critical or all accessible data.

Detection Guidance

Detection of CVE-2026-73880 requires checking for vulnerable versions of Oracle Helidon 4.5.1. Verify installed Helidon version using commands like 'java -jar helidon.jar --version' or inspect application logs for Helidon components. Ensure Helidon is updated to a non-vulnerable version.

Impact Analysis

If you use Helidon 4.5.1, an attacker with local system access could exploit this flaw to gain unauthorized access to sensitive data stored or processed by Helidon. This may result in data breaches or loss of confidentiality for critical information.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using Helidon 4.5.1 may face legal or regulatory penalties if data is compromised due to this flaw.

Mitigation Strategies

Update Helidon to a version unaffected by this vulnerability. Apply the latest security patches from Oracle. Restrict access to the infrastructure where Helidon executes to only trusted users. Monitor logs for suspicious activity related to Helidon components.

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