CVE-2026-83167 in Application Object Library
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Application Object Library product of Oracle E-Business Suite (component: Core). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Application Object Library. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Application Object Library accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Core component of Oracle Application Object Library, a critical module in Oracle E-Business Suite responsible for managing application metadata and business logic execution. This security flaw affects supported versions ranging from 12.2.3 through 12.2.15. The nature of this defect allows an unauthenticated attacker to exploit the weakness via network access using the HTTP protocol, indicating that no prior authentication credentials are required to initiate a successful attack vector against the affected systems.
From a technical perspective, the vulnerability stems from insufficient input validation or improper authorization checks within the application object processing logic. This flaw enables remote code execution or data exfiltration capabilities without requiring user interaction or valid session tokens. The absence of access control mechanisms at this layer means that any entity capable of reaching the web server hosting Oracle E-Business Suite can interact with vulnerable endpoints directly through standard HTTP requests, bypassing traditional security boundaries designed to protect sensitive enterprise resources.
The operational impact of exploiting this vulnerability is severe, primarily characterized by significant confidentiality breaches. As indicated by the CVSS 3.1 Base Score of 7.5, which focuses heavily on Confidentiality impacts, successful exploitation grants unauthorized access to critical data stored within the Oracle Application Object Library. In worst-case scenarios, an attacker could achieve complete access to all data accessible through this component, potentially exposing proprietary business information, customer records, financial details, and other sensitive enterprise assets. This level of compromise undermines the integrity of the entire application suite by allowing external actors to read or manipulate core system configurations and stored values.
This vulnerability aligns with Common Weakness Enumeration (CWE) categories such as CWE-287 Improper Authentication and CWE-918 Server-Side Request Forgery, depending on the specific exploitation mechanism utilized within the HTTP request processing pipeline. In terms of MITRE ATT&CK framework mapping, this behavior corresponds to techniques involving Initial Access via web applications and potentially Credential Access if session tokens are harvested during the exploit process. The lack of required authentication places it firmly in the category of unauthenticated remote attacks that target exposed services directly from the network perimeter.
To mitigate this risk, organizations running Oracle E-Business Suite versions 12.2.3 through 12.2.15 must apply the latest security patches provided by Oracle immediately. It is essential to verify patch levels against official Oracle Critical Patch Update advisories specific to these components. Additionally, implementing network-level controls such as Web Application Firewalls can help detect and block malicious HTTP requests targeting known vulnerable endpoints before they reach the application layer. Restricting direct internet access to E-Business Suite servers by placing them behind internal firewalls or reverse proxies with strict access control lists further reduces the attack surface available to unauthenticated attackers seeking to exploit this flaw.