---
id: CVE-2026-101574
title: >-
  Vulnerability in the Helidon product of Oracle Fusion Middleware (component:
  OIDC)
summary: >-
  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 …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Helidon
affected:
  - Helidon >= 4.0.0 <= 4.5.5
  - Helidon 27.0.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:21:38.419Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-101574'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.983Z'
---

## Overview

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).

## Affected

- `Helidon >= 4.0.0 <= 4.5.5`
- `Helidon 27.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.