CVE-2026-83042

Analyzed Analyzed - Analysis Complete

Authentication Bypass in Oracle Identity Manager

Publication date: 2026-09-15

Last updated on: 2026-09-22

Assigner: Oracle

Description

Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: OIM Legacy UI). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Identity Manager. Successful attacks of this vulnerability can result in takeover of Oracle Identity Manager. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-22

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83042

EUVD

EUVD-2026-79370

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	identity_manager	12.2.1.4.0
oracle	identity_manager	14.1.2.1.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This is a critical vulnerability in Oracle Identity Manager, a product under Oracle Fusion Middleware. It affects versions 12.2.1.4.0 and 14.1.2.1.0. The flaw allows an unauthenticated attacker to remotely access the system via HTTP and potentially take over the entire Oracle Identity Manager due to its high impact on confidentiality, integrity, and availability.

Detection Guidance

Since this is an unauthenticated remote code execution vulnerability in Oracle Identity Manager's Legacy UI, detection should focus on identifying vulnerable versions and exposed endpoints. Check if your Oracle Identity Manager version is 12.2.1.4.0 or 14.1.2.1.0. Inspect network traffic for HTTP requests to the Legacy UI component. Look for unusual administrative access patterns or unauthorized modifications to user accounts.

Impact Analysis

If you use Oracle Identity Manager with affected versions, an attacker could exploit this to gain full control of the system. This could lead to unauthorized access to sensitive data, manipulation of system configurations, or disruption of services, potentially causing significant operational and security risks.

Compliance Impact

This vulnerability could severely impact compliance with GDPR, HIPAA, and other regulations. Unauthorized access or data breaches resulting from this flaw may lead to violations of data protection requirements, potential legal penalties, reputational damage, and loss of trust in handling sensitive personal or health information.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle Identity Manager versions 12.2.1.4.0 and 14.1.2.1.0. If patches are unavailable, consider isolating the affected system from untrusted networks or disabling the OIM Legacy UI component until a fix is applied.

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