CVE-2026-101580

Deferred Deferred - Pending Action

Helidon JWT Provider Unauthorized Data Access

Publication date: 2026-10-20

Last updated on: 2026-11-06

Assigner: Oracle

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-security-providers-jwt). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. 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 read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N).

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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-2026-101580

EUVD

EUVD-2026-105988

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-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Fusion Middleware's Helidon product, specifically in the helidon-security-providers-jwt component. It affects versions 4.0.0-4.5.5 and 27.0.0. An unauthenticated attacker can exploit it via HTTP to gain unauthorized read access to a subset of Helidon accessible data.

Impact Analysis

An attacker could read sensitive data stored in or accessible through the Helidon system. This may include confidential information, depending on what data the Helidon instance processes or stores.

Compliance Impact

This vulnerability could lead to unauthorized data access, potentially violating GDPR (data protection) and HIPAA (health information privacy) by exposing personal or sensitive data. Compliance may be compromised if data breaches occur due to this issue.

Mitigation Strategies

Upgrade Helidon to a version later than 4.5.5 or 27.0.0, as these versions address the vulnerability. If upgrading is not immediately possible, restrict network access to the affected component via firewall rules or disable HTTP access if not required.

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