CVE-2026-83178 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. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Application Object Library. While the vulnerability is in Oracle Application Object Library, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Application Object Library. CVSS 3.1 Base Score 8.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/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 Application Object Library in Oracle E-Business Suite, specifically affecting supported versions ranging from 12.2.3 through 12.2.15. This security flaw is classified as a high-severity issue with a CVSS 3.1 Base Score of 8.0, indicating significant potential for compromise across confidentiality, integrity, and availability dimensions. The vulnerability vector indicates that exploitation requires network access via HTTP, yet it demands a high level of complexity to execute successfully. Crucially, the attacker must possess high privileges within the system prior to launching an attack, which serves as a primary control against opportunistic threats but does not eliminate risk for insider actors or compromised administrative accounts.
From a technical perspective, this vulnerability allows a privileged user with network connectivity to compromise the Oracle Application Object Library component itself. The mechanism of exploitation likely involves manipulating specific inputs or states within the application layer that are processed by the core library functions without adequate validation or sanitization. Although the direct impact is confined to the Application Object Library, the architecture of Oracle E-Business Suite means that this component interacts deeply with other modules and data stores. Consequently, a successful compromise can lead to a scope change where additional products within the suite are significantly impacted. This lateral movement capability amplifies the risk profile beyond the immediate target module, potentially exposing sensitive enterprise data or disrupting critical business processes managed by adjacent systems.
The operational impact of this vulnerability is severe due to its potential for full system takeover. An attacker who successfully exploits this flaw can gain unauthorized control over Oracle Application Object Library, which may serve as a pivot point for further escalation within the environment. The high availability and integrity impacts suggest that an adversary could not only exfiltrate confidential data but also alter critical business records or render essential services unavailable. This aligns with common attack patterns observed in enterprise environments where initial access through privileged accounts is leveraged to establish persistence, move laterally across trusted boundaries, and ultimately achieve domain dominance. The requirement for high privileges means that the threat actor typically represents a significant insider risk or an external attacker who has already compromised administrative credentials through phishing, credential stuffing, or other initial access techniques.
Mitigation strategies must focus on both technical controls and procedural safeguards to address this vulnerability effectively. Immediate remediation involves applying the latest security patches provided by Oracle for all affected versions of E-Business Suite between 12.2.3 and 12.2.15. Organizations should prioritize patching efforts based on asset criticality, ensuring that systems exposed via HTTP are updated first to reduce the attack surface. In addition to patching, implementing strict network segmentation is essential to limit lateral movement opportunities. Access controls must be rigorously reviewed to ensure that high-privileged accounts adhere to the principle of least privilege and multifactor authentication requirements. Monitoring for anomalous behavior associated with privileged account usage can help detect exploitation attempts in real-time before significant damage occurs.
This vulnerability maps to several industry-standard classifications that provide further context on its nature and mitigation. It is closely related to CWE categories such as Improper Input Validation or Insecure Direct Object References, depending on the specific code path exploited within the Application Object Library. From a tactical standpoint, it aligns with MITRE ATT&CK techniques involving Initial Access via Valid Accounts and Privilege Escalation if the vulnerability allows moving from lower-privileged states to higher ones during exploitation. Understanding these mappings helps security teams apply broader defensive frameworks beyond just patching, such as enhancing logging capabilities for HTTP requests targeting E-Business Suite endpoints and conducting regular penetration tests that simulate privileged insider threats. By addressing both the specific code flaw and the surrounding architectural risks, organizations can significantly reduce their exposure to this critical vulnerability in Oracle E-Business Suite environments.