CVE-2026-91490
Analyzed Analyzed - Analysis Complete

Unauthenticated LDAP Access in Oracle Identity Manager Connector

Publication date: 2026-10-20

Last updated on: 2026-10-27

Assigner: Oracle

Description
Vulnerability in the Oracle Identity Manager Connector product of Oracle Fusion Middleware (component: LDAP Gateway). 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 LDAP to compromise Oracle Identity Manager Connector. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Identity Manager Connector accessible data as well as unauthorized access to critical data or complete access to all Oracle Identity Manager Connector accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

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Meta Information

Published
2026-10-20
Last Modified
2026-10-27
Generated
2026-11-10
AI Q&A
2026-10-21
EPSS Evaluated
2026-11-08
NVD
CVE-2026-91490
EUVD
EUVD-2026-106735

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
oracle identity_manager_connector 12.2.1.4.0
oracle identity_manager_connector 14.1.2.1.0

Helpful Resources

Exploitability

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

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Executive Summary

This is a vulnerability in Oracle Identity Manager Connector's LDAP Gateway component affecting versions 12.2.1.4.0 and 14.1.2.1.0. An unauthenticated attacker can exploit it remotely via LDAP to gain unauthorized access to critical data or modify/delete it without needing credentials.

Detection Guidance

This vulnerability affects Oracle Identity Manager Connector versions 12.2.1.4.0 and 14.1.2.1.0 via the LDAP Gateway component. Detection requires checking for exposed LDAP services on these versions. Use network scanning tools like nmap to identify LDAP ports (typically 389 or 636) and verify if Oracle Identity Manager Connector services are running. Check system logs for unauthorized LDAP access attempts or modifications to critical data.

Impact Analysis

If you use the affected Oracle Identity Manager Connector versions, an attacker could steal, alter, or delete sensitive data managed by the connector. This includes unauthorized access to critical systems or data, potentially leading to data breaches or operational disruptions.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR, HIPAA, or other regulations due to unauthorized data access or modification. It risks exposing personal or sensitive data, triggering legal penalties, audit failures, and reputational damage for affected organizations.

Mitigation Strategies

Apply the latest Oracle Identity Manager Connector patches or updates provided by Oracle to address the LDAP Gateway vulnerability. Ensure network access to the LDAP Gateway is restricted to trusted sources only. Monitor for unauthorized data access or modifications.

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