CVE-2026-91407
Analyzed Analyzed - Analysis Complete

Oracle Identity Manager REST WebServices Authentication Bypass

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Oracle

Description
Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: REST WebServices). 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 Identity Manager. Successful attacks of this vulnerability can result in takeover of Oracle Identity Manager. 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).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-20
Last Modified
2026-11-03
Generated
2026-11-10
AI Q&A
2026-10-21
EPSS Evaluated
2026-11-08
NVD
CVE-2026-91407
EUVD
EUVD-2026-106659

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a 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 issue allows a low-privileged attacker with network access via HTTP to compromise the system. Successful exploitation can lead to complete takeover of Oracle Identity Manager.

Detection Guidance

Detection of CVE-2026-91407 requires monitoring for unauthorized access attempts to Oracle Identity Manager via HTTP. Check Oracle Identity Manager logs for unusual REST WebServices requests or administrative actions. Ensure network traffic to the Oracle Identity Manager ports is logged and inspected for anomalies.

Impact Analysis

An attacker could gain full control over Oracle Identity Manager, leading to unauthorized access, data theft, or system manipulation. This could disrupt identity management services and compromise sensitive user data.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR (data protection) and HIPAA (health data privacy) requirements. Compliance may be compromised due to potential exposure of sensitive 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. Restrict network access to HTTP ports used by Oracle Identity Manager. Monitor for unusual activity or unauthorized access attempts.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-91407. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...