---
id: CVE-2026-83426
title: >-
  Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware
  (component: Authentication Engine)
summary: >-
  Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware
  (component: Authentication Engine).  Supported versions that are affected are
  12.2.1.4.0 and  14.1.2.1.0. Difficult to exploit vulnerability allows
  unauthenti…
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle Access Manager
affected:
  - oracle_access_manager 12.2.1.4.0
  - oracle_access_manager 14.1.2.1.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:23:49.588Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-83426'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.877Z'
---

## Overview

Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.1.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager.  While the vulnerability is in Oracle Access Manager, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Oracle Access Manager accessible data as well as  unauthorized access to critical data or complete access to all Oracle Access Manager accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).

## Affected

- `oracle_access_manager 12.2.1.4.0`
- `oracle_access_manager 14.1.2.1.0`

## Remediation

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