CVE-2026-83428 in Demand Signal Repository
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Demand Signal Repository product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Demand Signal Repository. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Demand Signal Repository accessible data as well as unauthorized access to critical data or complete access to all Oracle Demand Signal Repository accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 09/16/2026
The Oracle Demand Signal Repository, a critical component within the Oracle E-Business Suite ecosystem designated under Internal Operations, has been identified with a significant security flaw affecting versions 12.2.3 through 12.2.15. This vulnerability represents a serious risk to organizations relying on this module for demand planning and supply chain analytics. The core of the issue lies in an insufficient access control mechanism that permits low-privileged users, who possess valid network credentials via HTTP, to execute unauthorized operations against the repository's underlying data structures. Unlike vulnerabilities requiring high-level administrative privileges or complex user interaction scenarios such as social engineering, this flaw can be exploited remotely by any authenticated user with basic access rights, significantly lowering the barrier for entry for malicious actors targeting enterprise resource planning environments.
From a technical perspective, the vulnerability allows an attacker to manipulate critical data within the Demand Signal Repository without proper authorization checks. This lack of enforcement enables actions such as unauthorized creation, deletion, or modification of essential records that drive demand forecasting algorithms and supply chain decisions. The operational impact is severe because these modifications can distort business intelligence outputs, leading to flawed procurement strategies, inventory mismanagement, and financial discrepancies. Furthermore, the vulnerability grants complete access to all data accessible by the Demand Signal Repository module, which may include sensitive customer information, supplier contracts, and proprietary sales forecasts. This level of exposure compromises both the confidentiality and integrity of enterprise data, potentially violating regulatory compliance standards such as GDPR or HIPAA if personal health or personally identifiable information is stored within these tables.
The severity of this vulnerability is quantified by a CVSS 3.1 Base Score of 8.1, indicating a High severity rating driven primarily by high impacts on confidentiality and integrity while availability remains unaffected in the base score calculation. The vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) highlights that the attack vector is network-based with low complexity, requiring only local privileges for the attacker but no user interaction. This aligns closely with CWE-269 Improper Privilege Management and CWE-862 Missing Authorization, as the system fails to verify whether a user has sufficient rights before allowing data manipulation or retrieval operations. In terms of offensive security frameworks, this behavior corresponds to ATT&CK technique T1078 Valid Accounts, where attackers leverage legitimate credentials to move laterally or escalate privileges within the application layer rather than exploiting software bugs in network protocols directly.
Mitigation strategies must focus on immediate patching and access control hardening. Oracle has released patches for affected versions 12.2.3 through 12.2.15, and organizations should apply these updates as a priority to close the authorization gap. In addition to applying vendor-supplied fixes, administrators should enforce strict role-based access controls ensuring that users with low-level privileges do not have write or delete permissions on critical demand signal tables unless absolutely necessary for their job function. Network segmentation can also reduce risk by restricting HTTP access to the E-Business Suite environment from untrusted networks and enforcing HTTPS encryption to prevent credential interception during authentication, although this does not mitigate the internal authorization flaw itself. Continuous monitoring of database audit logs for unusual patterns of data modification or bulk reads by low-privileged accounts is recommended to detect potential exploitation attempts in real-time.