CVE-2026-83026 in Identity Manager Connector
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Identity Manager Connector product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Difficult to exploit vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the Oracle Identity Manager Connector executes to compromise Oracle Identity Manager Connector. While the vulnerability is in Oracle Identity Manager Connector, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Identity Manager Connector. CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Core component of Oracle Identity Manager Connector, a critical element of the Oracle Fusion Middleware suite affecting versions 12.2.1.4.0 and 14.1.2.1.0. This flaw represents a significant security risk due to its potential for unauthenticated exploitation by an attacker who has gained access to the physical communication segment attached to the hardware hosting the connector. The nature of this vulnerability allows an adversary to compromise the integrity, confidentiality, and availability of the Oracle Identity Manager Connector service with relative ease despite requiring high complexity in certain attack vectors. The severity is underscored by a CVSS 3.1 Base Score of 8.3, indicating a High level of risk that demands immediate attention from security operations teams responsible for maintaining these middleware environments.
From a technical perspective, the vulnerability exploits weaknesses in how the connector handles interactions over its physical network interface. Because the attack vector is adjacent rather than remote or local, it targets scenarios where an attacker can physically connect to the same network segment as the target system, such as through compromised switches, rogue devices on shared LANs, or insider threats with physical access privileges. The lack of required authentication for exploitation means that any entity capable of injecting traffic into this communication channel can attempt to leverage the flaw. This characteristic aligns closely with CWE-287, which describes Improper Authentication, and suggests a failure in enforcing strict identity verification mechanisms before processing incoming requests or commands directed at the connector core logic.
The operational impact of successfully exploiting this vulnerability extends beyond the immediate compromise of the Oracle Identity Manager Connector itself. Due to the interconnected nature of enterprise middleware architectures, an attacker gaining control over the connector can trigger a scope change that significantly impacts additional products within the broader Oracle Fusion Middleware ecosystem. This lateral movement capability allows for potential takeover of the connector process, which may serve as a pivot point for further attacks against identity stores, user directories, and access management policies managed by the system. Such compromise could lead to unauthorized access to sensitive corporate data, manipulation of authentication workflows, or disruption of critical business processes dependent on accurate identity governance.
In terms of threat modeling, this vulnerability maps to ATT&CK techniques involving initial access via network-based attacks and potentially privilege escalation if the connector runs with elevated privileges. The ability to take over the service aligns with T1059 Command and Scripting Interpreter or T1068 Exploitation for Privilege Escalation depending on the specific code execution path exploited. Security analysts should recognize that while the attack requires physical proximity to the network segment, this does not diminish its severity in environments where internal networks are trusted implicitly without sufficient segmentation or monitoring. The high availability impact noted in the CVSS vector highlights the potential for denial of service conditions alongside data breaches and integrity violations.
Mitigation strategies must focus on both immediate containment and long-term architectural improvements. Organizations should immediately restrict physical access to network segments hosting Oracle Identity Manager Connectors, ensuring that only authorized devices can connect to these specific VLANs or subnets. Implementing strict port security features on switches, such as 802.1X authentication for device connectivity, can prevent unauthorized endpoints from joining the communication segment. Additionally, deploying intrusion detection systems capable of monitoring for anomalous traffic patterns associated with exploitation attempts is advisable. From a software perspective, applying the latest patches provided by Oracle is essential to address the underlying code flaws. If patching is not immediately feasible, network segmentation using firewalls or micro-segmentation tools can isolate the connector from other potentially vulnerable services, thereby limiting the blast radius of any successful attack and protecting adjacent products within the middleware stack.