CVE-2026-71104: Oracle HRMS Privilege Escalation Flaw

CVE-2026-71104 Overview

CVE-2026-71104 is a high-severity vulnerability in the Oracle HRMS (Netherlands) product of Oracle E-Business Suite, specifically within the Netherlands Payroll component. The flaw affects supported versions 12.2.3 through 12.2.15. An authenticated attacker with high privileges and network access via HTTP can exploit this weakness to take over Oracle HRMS (Netherlands). Successful exploitation impacts confidentiality, integrity, and availability. The issue is categorized under [CWE-284] Improper Access Control.

Critical Impact
Successful exploitation results in complete takeover of the Oracle HRMS (Netherlands) module, exposing payroll data and enabling manipulation of HR and financial records.

Affected Products

Oracle E-Business Suite — Oracle HRMS (Netherlands), version 12.2.3
Oracle E-Business Suite — Oracle HRMS (Netherlands), versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle HRMS (Netherlands), version 12.2.15

Discovery Timeline

2026-08-18 - CVE-2026-71104 published to NVD
2026-08-20 - Last updated in NVD database
August 2026 - Addressed in the Oracle Security Alert August 2026

Technical Details for CVE-2026-71104

Vulnerability Analysis

The vulnerability resides in the Netherlands Payroll component of Oracle HRMS within Oracle E-Business Suite. An attacker who already holds high privileges within the application can send crafted HTTP requests to compromise the module. The exploit path does not require user interaction and is described by Oracle as easily exploitable once the privilege prerequisite is met.

Because the weakness maps to [CWE-284] Improper Access Control, the affected code likely fails to enforce the access boundaries expected between privileged administrative functions and payroll data operations. Once triggered, the attacker gains full read, write, and disruption capability across the HRMS (Netherlands) module.

The EPSS probability is 0.316%, reflecting no observed exploitation activity at time of publication. No public proof-of-concept has been released, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The root cause is improper access control within the Netherlands Payroll component. The application does not adequately restrict privileged operations, allowing an authenticated high-privileged user to escalate their reach and take over the module. Full technical internals have not been disclosed by Oracle.

Attack Vector

Exploitation requires network access to the E-Business Suite HTTP interface and valid high-privileged credentials. The attacker issues crafted HTTP requests to payroll endpoints exposed by the HRMS (Netherlands) module. No user interaction and no additional privilege escalation step outside the vulnerable path are needed.

Oracle has not published exploitation code. Refer to the Oracle Security Alert August 2026 for vendor-supplied technical guidance.

Detection Methods for CVE-2026-71104

Indicators of Compromise

Unexpected HTTP requests to Oracle HRMS (Netherlands) Payroll endpoints originating from high-privileged application accounts.
Anomalous payroll data modifications, new administrative actions, or bulk record changes outside scheduled payroll cycles.
Session activity from privileged E-Business Suite accounts at unusual hours or from atypical source addresses.

Detection Strategies

Audit E-Business Suite application logs for privileged user actions against the Netherlands Payroll component.
Correlate HTTP access logs with database-level audit trails to identify unauthorized module takeover attempts.
Baseline normal payroll administrative behavior and alert on deviations in request frequency, endpoints touched, or data volume.

Monitoring Recommendations

Enable Oracle E-Business Suite Sign-On Audit and page-access tracking for HRMS (Netherlands) responsibilities.
Forward application and web tier logs to a centralized analytics platform for continuous review.
Monitor privileged account provisioning and role assignments tied to Netherlands Payroll functions.

How to Mitigate CVE-2026-71104

Immediate Actions Required

Apply the Oracle patch released in the August 2026 Critical Patch Update to all Oracle E-Business Suite deployments running HRMS (Netherlands) versions 12.2.3 through 12.2.15.
Review and reduce the number of accounts holding high privileges on the HRMS (Netherlands) module.
Rotate credentials for privileged E-Business Suite accounts after patch application.

Patch Information

Oracle addressed CVE-2026-71104 in the Oracle Security Alert August 2026. Administrators should follow Oracle's Critical Patch Update installation procedures and validate the patched versions against the affected releases 12.2.3–12.2.15.

Workarounds

Restrict network access to Oracle E-Business Suite HTTP endpoints to trusted management networks until patching completes.
Temporarily suspend or tightly scope responsibilities that grant high-privileged access to Netherlands Payroll functions.
Enforce multi-factor authentication for administrative access to Oracle E-Business Suite where supported.