CVE-2026-71163

Analyzed Analyzed - Analysis Complete

Authentication Bypass in Oracle Access Manager

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

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. Easily exploitable vulnerability allows low privileged 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L).

CVSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-71163

EUVD

EUVD-2026-79517

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	access_manager	12.2.1.4.0
oracle	access_manager	14.1.2.1.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Access Manager, a product under Oracle Fusion Middleware. It affects versions 12.2.1.4.0 and 14.1.2.1.0. The issue allows a low-privileged attacker with network access to exploit it via HTTP, potentially compromising the system.

Detection Guidance

This vulnerability affects Oracle Access Manager versions 12.2.1.4.0 and 14.1.2.1.0. Detection requires checking installed versions of Oracle Access Manager. Use commands like 'opatch lsinventory' or inspect Oracle Fusion Middleware logs for authentication-related errors. Monitor network traffic for unusual HTTP requests targeting Oracle Access Manager endpoints.

Impact Analysis

An attacker could exploit this to create, delete, or modify critical data, access all Oracle Access Manager data, or cause a partial denial of service. This could lead to unauthorized data exposure or system disruption.

Compliance Impact

This vulnerability allows unauthorized access to critical data and modification of data, which could lead to violations of GDPR (data confidentiality and integrity) and HIPAA (protected health information exposure). The partial denial of service may also impact availability requirements in these regulations.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle Access Manager versions 12.2.1.4.0 and 14.1.2.1.0. Restrict network access to HTTP ports used by Oracle Access Manager. Monitor for unusual data access or modification patterns in Oracle Access Manager logs.

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