CVE-2026-101574

Undergoing Analysis Undergoing Analysis - In Progress

Unauthenticated Access in Oracle Helidon OIDC

Publication date: 2026-10-20

Last updated on: 2026-11-06

Assigner: Oracle

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: OIDC). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert or delete access to some of Helidon accessible data. CVSS 3.1 Base Score 6.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-06

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101574

EUVD

EUVD-2026-105982

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Helidon	4.0.0
Oracle Corporation	Helidon	27.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-352	The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Fusion Middleware's Helidon product, specifically in the OIDC component. It affects versions 4.0.0-4.5.5 and 27.0.0. The issue allows an unauthenticated attacker to exploit it via HTTP, requiring some interaction from a user. Successful exploitation could lead to unauthorized access or modification of data within Helidon.

Detection Guidance

Detection requires checking if Helidon versions 4.0.0-4.5.5 or 27.0.0 are running. Inspect server logs for OIDC-related errors or unusual HTTP requests. Use commands like 'curl -v http://<target>:<port>/' to probe endpoints. Verify installed Helidon versions with 'java -jar helidon.jar --version' if applicable.

Impact Analysis

If exploited, this vulnerability could allow attackers to gain unauthorized access to sensitive data or modify data within the Helidon system. This might lead to data breaches, loss of data integrity, or unauthorized changes to critical information.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected Helidon versions may face legal and regulatory penalties due to potential data breaches or loss of data integrity.

Mitigation Strategies

Update Helidon to a version unaffected by this vulnerability (4.5.6 or later for 4.x, or 27.0.1 or later for 27.x). If immediate update is not possible, restrict network access to Helidon components via firewall rules and disable unnecessary HTTP interfaces.

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