CVE-2026-83119 in User Management
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle User Management product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.6-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle User Management. Successful attacks of this vulnerability can result in takeover of Oracle User Management. 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).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Internal Operations component of Oracle User Management in Oracle E-Business Suite, specifically affecting supported versions ranging from 12.2.6 through 12.2.15. This security flaw represents a critical risk to enterprise environments relying on this suite for identity and access management operations. The core technical issue stems from insufficient validation or authorization checks within the internal operational interfaces that are exposed via HTTP. Because these endpoints are accessible over the network, they present an attack surface that can be leveraged by adversaries who have established a foothold within the corporate network perimeter.
Exploitation of this vulnerability requires only low-privileged access and standard network connectivity through HTTP protocols. This significantly lowers the barrier to entry for attackers compared to vulnerabilities requiring high privileges or complex user interaction. An attacker with basic authenticated credentials can craft specific requests to trigger the flaw, bypassing expected security controls. The absence of a requirement for user interface interaction means that automated exploitation tools can be deployed effectively without needing social engineering tactics to trick users into clicking malicious links or executing scripts.
The operational impact of this vulnerability is severe, as indicated by its CVSS 3.1 base score of 8.8, which classifies it as High severity with significant implications for confidentiality, integrity, and availability. A successful exploit allows the attacker to achieve complete takeover of Oracle User Management. This level of compromise enables the adversary to manipulate user accounts, alter permissions, extract sensitive identity data, or disrupt authentication services entirely. In an enterprise context where E-Business Suite often serves as a central hub for business processes, compromising its user management system can lead to widespread unauthorized access across integrated applications and databases that rely on this single point of trust.
From a classification perspective, this vulnerability aligns with CWE-287, which denotes Improper Authentication, or potentially CWE-269 if the issue relates specifically to privilege escalation following initial low-level access. The attack vector corresponds to MITRE ATT&CK technique T1078, Valid Accounts, as it leverages existing credentials, and may involve T1548, Abuse Elevation Control Mechanism, depending on how the internal operations are bypassed. Understanding these mappings helps security teams prioritize remediation efforts based on established threat intelligence frameworks.
Mitigation strategies must focus primarily on applying the latest available patches from Oracle to update the affected versions of Oracle User Management. Organizations should ensure that their patch management processes account for this specific component within E-Business Suite 12.2.x releases. In addition to software updates, network segmentation plays a crucial role in reducing risk. Internal operations interfaces should not be directly exposed to untrusted networks and must be restricted to authorized administrative subnets using firewalls or access control lists. Implementing strict HTTP method restrictions and enforcing HTTPS with strong certificate validation can also help mitigate exposure while patches are being deployed. Continuous monitoring for anomalous authentication patterns related to user management endpoints is recommended to detect potential exploitation attempts in real time.