CVE-2026-83457 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 and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Demand Signal Repository. CVSS 3.1 Base Score 8.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).
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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 under the Internal Operations module, has been identified with a significant security flaw affecting versions 12.2.3 through 12.2.15. This vulnerability represents a severe risk to organizations relying on this software for demand planning and signal processing operations. The core issue lies in an improper validation or handling mechanism within the HTTP interface of the application, which permits low-privileged attackers with network access to execute unauthorized actions against the system. Unlike vulnerabilities that require high-level administrative privileges or complex social engineering tactics, this flaw can be exploited by any authenticated user who possesses basic network connectivity to the affected service, significantly lowering the barrier for entry and increasing the likelihood of successful exploitation in environments where internal users may have varying levels of access rights but share common network pathways.
From a technical perspective, the vulnerability enables an attacker to manipulate critical data structures or trigger conditions that lead to system instability. The impact is twofold, targeting both the integrity and availability of the Oracle Demand Signal Repository. On the integrity front, successful exploitation allows for the unauthorized creation, deletion, or modification of sensitive business data stored within the repository. This could involve altering demand forecasts, supply chain signals, or other operational metrics that drive downstream procurement and production decisions. Such tampering can lead to severe financial losses, disrupted supply chains, and compromised decision-making processes based on corrupted data inputs. The ability to modify critical data without authorization is a direct violation of core security principles regarding data trustworthiness and consistency within enterprise resource planning environments.
Simultaneously, the vulnerability poses a substantial threat to system availability by enabling denial-of-service conditions. An attacker can craft specific requests that cause the Oracle Demand Signal Repository service to hang or crash repeatedly. This complete denial of service prevents legitimate users from accessing essential demand planning tools, effectively halting business operations related to inventory management and sales forecasting. The repeatable nature of these crashes means that once an attack vector is identified, it can be sustained over time, leading to prolonged downtime until the system is restarted or patched. For organizations operating on tight margins with just-in-time supply chain models, such interruptions can have cascading effects across the entire operational workflow, impacting production schedules and customer fulfillment capabilities.
In terms of industry-standard classification frameworks, this vulnerability aligns closely with CWE-269 Improper Privilege Management, as it allows a low-privileged user to perform actions typically reserved for higher-level accounts or system administrators. Furthermore, the ability to modify critical data corresponds to CWE-740 Injection and potentially CWE-352 Cross-Site Request Forgery depending on the specific mechanism of exploitation within the HTTP protocol layer. The impact on availability maps directly to CWE-400 Uncontrolled Resource Consumption when considering the denial-of-service aspect caused by resource exhaustion or infinite loops triggered by malformed inputs. From a tactical standpoint, this vulnerability facilitates actions consistent with MITRE ATT&CK technique T1565 Data Manipulation and T1499 Endpoint Denial of Service, allowing adversaries to degrade service quality and corrupt data integrity without needing elevated privileges initially.
Mitigation strategies must prioritize immediate patching by Oracle for all affected versions within the 12.2.x series. Organizations should verify their current version against the supported list and apply the latest security patches provided in Oracle Critical Patch Updates as soon as they become available. In scenarios where immediate patching is not feasible due to maintenance windows or testing requirements, network-level controls such as Web Application Firewalls can be configured to detect and block suspicious HTTP requests that exhibit patterns associated with this vulnerability. Additionally, implementing strict access control policies to limit HTTP access to the Internal Operations module only from trusted IP ranges and enforcing multi-factor authentication for all user accounts can reduce the attack surface. Regular auditing of system logs for unusual activity or repeated crash events is also recommended to detect potential exploitation attempts early in their lifecycle.