CVE-2026-83025: Oracle Identity Manager Auth Bypass Flaw

CVE-2026-83025 Overview

CVE-2026-83025 is an access control weakness in the Oracle Identity Manager Connector product within Oracle Fusion Middleware. The flaw resides in the Core component and affects supported versions 12.2.1.4.0 and 14.1.2.1.0. An unauthenticated attacker with network access over TCP can compromise the connector, and successful exploitation causes a scope change that impacts additional products beyond the vulnerable component. Oracle addressed the issue in the Oracle Security Alert Advisory CSPUSEP2026.

Critical Impact

Successful attacks allow unauthorized creation, deletion, or modification of critical data and full read access to all Oracle Identity Manager Connector accessible data.

Affected Products

• Oracle Identity Manager Connector 12.2.1.4.0
• Oracle Identity Manager Connector 14.1.2.1.0
• Oracle Fusion Middleware (Core component)

Discovery Timeline

• 2026-09-15 - CVE-2026-83025 published to NVD
• 2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-83025

Vulnerability Analysis

The vulnerability affects the Core component of the Oracle Identity Manager Connector, a product used to synchronize identity data between Oracle Identity Governance and external target systems. The weakness maps to [CWE-284] Improper Access Control. Exploitation requires network reachability over TCP and no authentication or user interaction. The attack complexity is high, which indicates that exploitation depends on conditions outside the attacker's direct control. Because the vulnerability produces a scope change, a compromise of the connector can extend impact to other Oracle Fusion Middleware components that trust it. Confidentiality and integrity are both impacted at a high level, while availability is not affected.

Root Cause

The underlying issue is an improper access control condition in the connector Core component. The connector fails to correctly restrict who can perform sensitive operations, which allows an unauthenticated network attacker to reach protected functionality. Oracle has not published implementation-level details in the public advisory.

Attack Vector

The attack vector is network-based over TCP. An attacker sends crafted requests to the exposed Oracle Identity Manager Connector service without providing credentials. Because the vulnerable component is trusted by dependent identity systems, a successful attack can read, create, delete, or modify data across the broader identity fabric that the connector integrates with. No verified proof-of-concept code or exploit is publicly available at the time of publication.

Detection Methods for CVE-2026-83025

Indicators of Compromise

• Unauthenticated TCP requests to Oracle Identity Manager Connector endpoints from unexpected source addresses.
• Unexpected creation, modification, or deletion of identity accounts, entitlements, or connector configuration objects.
• Anomalous provisioning or reconciliation events initiated outside normal change windows.
• Access to sensitive connector datastores by service accounts that do not typically interact with them.

Detection Strategies

• Review Oracle Identity Manager audit logs for unauthenticated or malformed requests to connector services.
• Correlate connector activity with downstream identity provisioning events to detect scope-crossing abuse.
• Alert on identity object changes that lack a corresponding approved workflow or ticket.

Monitoring Recommendations

• Forward Oracle Identity Manager Connector logs and Fusion Middleware audit trails into a centralized SIEM for correlation.
• Monitor network telemetry for TCP connections to connector ports from outside sanctioned management subnets.
• Track privileged identity operations against a baseline of expected volume and originating systems.

How to Mitigate CVE-2026-83025

Immediate Actions Required

• Apply the patches released in the Oracle Security Alert Advisory CSPUSEP2026 to all affected 12.2.1.4.0 and 14.1.2.1.0 deployments.
• Inventory Oracle Identity Manager Connector installations and confirm version levels against the advisory.
• Restrict network exposure of connector services to trusted administrative subnets only.
• Rotate credentials and audit identity objects modified since the exposure window began.

Patch Information

Oracle published fixes as part of the Oracle Security Alert CSPUSEP2026. Administrators should apply the advisory's updates to Oracle Identity Manager Connector 12.2.1.4.0 and 14.1.2.1.0 and validate that dependent Fusion Middleware components remain operational after patching.

Workarounds

• Place Oracle Identity Manager Connector behind a network segment reachable only from Oracle Identity Governance and authorized management hosts.
• Enforce firewall rules that block untrusted TCP access to connector listener ports.
• Enable enhanced audit logging on connector operations until the patch is deployed.
• Review and tighten role assignments on downstream systems the connector provisions.

# Configuration example: restrict TCP access to the connector host
# Replace <connector_port> and <trusted_subnet> with environment values
iptables -A INPUT -p tcp --dport <connector_port> -s <trusted_subnet> -j ACCEPT
iptables -A INPUT -p tcp --dport <connector_port> -j DROP