CVE-2026-83359 in HRMS
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle HRMS (India) product of Oracle E-Business Suite (component: Indian Payroll). 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 HRMS (India). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle HRMS (India) accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/22/2026
The identified vulnerability resides within the Indian Payroll component of Oracle HRMS, a critical module in the broader Oracle E-Business Suite ecosystem designed to manage human resources and payroll operations specifically for entities operating under Indian regulatory frameworks. This security flaw affects supported software versions ranging from 12.2.3 through 12.2.15, indicating that a significant portion of deployed instances remain susceptible if they have not been patched or upgraded beyond the affected range. The nature of this vulnerability allows an attacker with low privileges and network access via HTTP to compromise the integrity and confidentiality of the system. This classification highlights a severe misconfiguration or logic error within the application layer where authentication checks are insufficiently enforced for specific payroll-related endpoints, allowing unauthorized entities to bypass standard security controls that should restrict data visibility based on user roles.
From a technical perspective, this vulnerability is characteristic of an insecure direct object reference or broken access control issue, which aligns with CWE-284 in the Common Weakness Enumeration taxonomy. The attacker does not require complex exploitation techniques or social engineering vectors such as user interaction, making it easily exploitable over the network. By leveraging HTTP requests, a low privileged user can manipulate input parameters to access payroll records belonging to other employees or administrative data that should be strictly isolated. This lack of proper authorization checks enables the retrieval of sensitive personal information including salary details, bank account numbers, tax identification numbers, and performance reviews. The absence of adequate server-side validation for object ownership allows the attacker to iterate through identifiers to enumerate and extract large volumes of critical human resources data without triggering standard intrusion detection alerts associated with brute force or privilege escalation attempts.
The operational impact of this vulnerability is substantial due to the high sensitivity of payroll data. Successful exploitation results in a complete compromise of confidentiality, as indicated by the CVSS 3.1 base score of 6.5 and the specific vector component C:H which denotes High Confidentiality impact while Integrity and Availability remain unaffected at None. The exposure of such detailed employee financial information can lead to severe regulatory violations under data protection laws applicable in India, such as the Digital Personal Data Protection Act or earlier guidelines from the Reserve Bank of India regarding sensitive personal data. Furthermore, organizations face significant reputational damage and potential legal liabilities stemming from identity theft risks faced by affected employees. The ability to access all Oracle HRMS accessible data effectively neutralizes the security boundary between low-level users and highly privileged administrative functions within the payroll domain, creating a pathway for further lateral movement or fraud if combined with other vulnerabilities in adjacent modules.
Mitigation strategies must prioritize immediate patching of the Oracle E-Business Suite environment to versions that include the relevant security patches addressing this specific Indian Payroll flaw. Organizations should verify their current version against the supported range and apply interim fixes provided by Oracle until a full upgrade is feasible. In addition to software updates, implementing strict network segmentation can limit exposure by ensuring that only authorized application servers can communicate with the database backend hosting HRMS data. Web Application Firewalls should be configured to detect and block anomalous HTTP requests that attempt to access payroll endpoints without proper session validation or parameter integrity checks. Regular security audits focusing on role-based access control configurations within Oracle HRMS are essential to ensure that low privileged accounts do not possess unintended permissions for sensitive financial records, thereby reducing the attack surface even if similar vulnerabilities exist in other components of the suite.