CVE-2026-83396 in Data Integrator
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle Data Integrator product of Oracle Fusion Middleware (component: Console / Repository Explorer). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via RMI to compromise Oracle Data Integrator. Successful attacks of this vulnerability can result in takeover of Oracle Data Integrator. 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).
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Analysis
by VulDB Data Team • 10/21/2026
The Oracle Data Integrator product within the Oracle Fusion Middleware suite contains a critical security flaw located in its Console and Repository Explorer components, specifically affecting versions 12.2.1.4.0 and 14.1.2.0.0. This vulnerability stems from an improper access control mechanism that fails to adequately restrict unauthenticated interactions with remote method invocation interfaces. The core technical issue involves the exposure of administrative or sensitive operational endpoints over Remote Method Invocation protocols without requiring prior authentication. By leveraging this misconfiguration, a malicious actor can bypass standard security gates and execute commands directly against the application server infrastructure. This represents a fundamental failure in implementing proper authorization checks before processing incoming requests from external network sources.
The exploitability of this vulnerability is significantly heightened by its low complexity requirements and lack of prerequisite conditions for the attacker. An unauthenticated adversary with basic network connectivity to the affected Oracle Data Integrator instance can initiate attacks without needing valid credentials or user interaction. The attack vector relies on direct network access, allowing remote exploitation over standard TCP/IP connections. This ease of use means that automated scanning tools and opportunistic attackers can rapidly identify and compromise vulnerable systems across large enterprise environments. The absence of required authentication creates a wide attack surface where any host with network reachability to the service is potentially at risk of immediate compromise.
Successful exploitation results in complete system takeover, granting the attacker full administrative control over the Oracle Data Integrator environment. This level of access allows for extensive manipulation of data integration workflows, extraction of sensitive business logic and metadata stored within the repository, and potential lateral movement into adjacent network segments. The impact on confidentiality is severe as proprietary ETL processes and database connection strings may be exposed. Integrity impacts are equally critical since an attacker can alter transformation rules or inject malicious code into scheduled jobs, leading to data corruption or manipulation of downstream systems. Availability is also compromised as the attacker could disrupt ongoing integration tasks or crash services through resource exhaustion attacks facilitated by their elevated privileges.
From a classification perspective, this vulnerability aligns with CWE-287 Improper Authentication and CWE-923 Improper Restriction of Excessive Privileges to Sensitive Information. The ability for an unauthenticated user to achieve full system control maps directly to the ATT&CK technique T1068 Exploitation for Privilege Escalation, as well as T1190 Exploit Public-Facing Application. Organizations must treat this issue with high priority due to its remote exploitability and critical impact score of 9.8 on the CVSS v3.1 scale. Immediate remediation involves applying the latest security patches provided by Oracle for the specified versions. In environments where patching is not immediately feasible, network segmentation strategies should be implemented to restrict RMI port access exclusively to trusted internal hosts. Additionally, deploying web application firewalls with rules targeting known exploitation patterns can provide a temporary layer of defense against automated attacks while permanent fixes are deployed.