CVE-2026-62476 Overview
CVE-2026-62476 is a privilege escalation vulnerability in the Oracle Public Sector Payroll product of Oracle E-Business Suite, specifically within the Internal Operations component. Supported versions 12.2.3 through 12.2.15 are affected. A low-privileged attacker with network access via HTTP can exploit this flaw to compromise Oracle Public Sector Payroll. Successful exploitation results in complete takeover of the application, impacting confidentiality, integrity, and availability. Oracle addressed this issue in the July 2026 Critical Patch Update.
Critical Impact
An authenticated attacker with minimal privileges can take over the Oracle Public Sector Payroll application over the network, gaining full access to sensitive payroll data and administrative functions.
Affected Products
- Oracle E-Business Suite - Oracle Public Sector Payroll version 12.2.3
- Oracle E-Business Suite - Oracle Public Sector Payroll versions 12.2.4 through 12.2.14
- Oracle E-Business Suite - Oracle Public Sector Payroll version 12.2.15
Discovery Timeline
- 2026-07-21 - CVE-2026-62476 published to NVD
- 2026-07-22 - Last updated in NVD database
- July 2026 - Oracle releases fix in Oracle Critical Patch Update
Technical Details for CVE-2026-62476
Vulnerability Analysis
The vulnerability resides in the Internal Operations component of Oracle Public Sector Payroll, part of the broader Oracle E-Business Suite. The flaw is categorized as improper privilege management [CWE-269]. An authenticated attacker with low-level application privileges can send crafted HTTP requests to escalate access and take over the Payroll module.
The attack requires no user interaction and can be executed remotely over the network. Exploitation yields high impact across confidentiality, integrity, and availability, consistent with a full application takeover. The scope remains unchanged, meaning the compromise is contained within the Payroll product but affects all data and functionality it controls.
EPSS scoring indicates a probability of 0.266% with a percentile of 18.565 at time of publication. No public proof-of-concept exploit is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
Root Cause
The root cause is improper privilege management within the Internal Operations component. The application does not adequately validate or enforce privilege boundaries when processing HTTP requests from authenticated users. This allows a user with limited rights to perform actions reserved for higher-privileged roles.
Attack Vector
The attack vector is network-based via HTTP. An attacker must hold a valid low-privileged account on the target Oracle E-Business Suite deployment. From that authenticated context, the attacker issues crafted requests to the Internal Operations component to trigger the privilege escalation and gain control over Oracle Public Sector Payroll.
No verified exploit code is available. Refer to the Oracle Critical Patch Update advisory for authoritative technical details.
Detection Methods for CVE-2026-62476
Indicators of Compromise
- Unexpected HTTP requests to Oracle Public Sector Payroll Internal Operations endpoints from low-privileged user accounts.
- Sudden changes to payroll configuration, employee records, or administrative settings performed by non-administrative accounts.
- Anomalous session activity or elevated action patterns originating from accounts that historically perform only routine operations.
Detection Strategies
- Correlate Oracle E-Business Suite application logs with user role assignments to identify privilege boundary violations.
- Alert on HTTP requests to Internal Operations URLs originating from accounts lacking administrative payroll roles.
- Baseline normal user behavior in the Payroll module and flag deviations such as bulk record edits or configuration changes.
Monitoring Recommendations
- Enable and centralize Oracle E-Business Suite audit logging, including FND user activity and Payroll module transactions.
- Forward web-tier access logs to a SIEM for correlation with authentication events and role changes.
- Monitor database-level changes to payroll tables for updates originating from unexpected application sessions.
How to Mitigate CVE-2026-62476
Immediate Actions Required
- Apply the July 2026 Oracle Critical Patch Update fix for Oracle E-Business Suite versions 12.2.3 through 12.2.15 as soon as possible.
- Inventory all Oracle Public Sector Payroll deployments and confirm patch status against the Oracle CPU advisory.
- Review and reduce the number of accounts with access to the Payroll module, enforcing least privilege.
Patch Information
Oracle released the fix for CVE-2026-62476 as part of the July 2026 Critical Patch Update. Administrators should follow the guidance in the Oracle Critical Patch Update - July 2026 advisory. Apply the patch to all supported affected versions (12.2.3 through 12.2.15) and validate the update in a test environment before production rollout.
Workarounds
- Restrict network access to the Oracle E-Business Suite web tier so that only trusted internal networks and VPN users can reach the Payroll endpoints.
- Audit and revoke unnecessary low-privileged accounts that have access to the Public Sector Payroll application.
- Enforce multi-factor authentication on all Oracle E-Business Suite user accounts to raise the barrier for the required authenticated foothold.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
