---
id: CVE-2026-83189
title: >-
  Vulnerability in the Oracle User Management product of Oracle E-Business Suite
  (component: Proxy User Delegation)
summary: >-
  Vulnerability in the Oracle User Management product of Oracle E-Business Suite
  (component: Proxy User Delegation).  Supported versions that are affected are
  12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged
  attacker …
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-269
vendor: Oracle Corporation
product: Oracle User Management
affected:
  - oracle_user_management >= 12.2.3 <= 12.2.15
published: '2026-09-15'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T14:17:35.363'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-83189'
references:
  - url: 'https://www.oracle.com/security-alerts/cspusep2026.html'
    label: secalert_us@oracle.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T13:01:54.222953Z'
epss: 0.00389
epssPercentile: 0.32896
ingestedAt: '2026-09-15T20:44:02.481Z'
---

## Overview

Vulnerability in the Oracle User Management product of Oracle E-Business Suite (component: Proxy User Delegation).  Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle User Management.  Successful attacks of this vulnerability can result in takeover of Oracle User Management. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

## Remediation

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