CVE-2026-62565: Oracle HRMS Auth Bypass Vulnerability

CVE-2026-62565 Overview

CVE-2026-62565 is a high-severity vulnerability in the Oracle HRMS (US) product of Oracle E-Business Suite, specifically within the US Payroll Year End component. Affected releases include supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access over HTTP can exploit this flaw to compromise Oracle HRMS (US). Successful exploitation results in unauthorized access to critical payroll data and unauthorized update, insert, or delete access to a subset of Oracle HRMS (US) data. The weakness is categorized under [CWE-200] Information Exposure.

Critical Impact
Authenticated network attackers can read all HRMS (US) accessible payroll data and modify a subset of records, exposing employee wage, tax, and year-end payroll information.

Affected Products

Oracle E-Business Suite - Oracle HRMS (US) version 12.2.3
Oracle E-Business Suite - Oracle HRMS (US) versions 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle HRMS (US) version 12.2.15

Discovery Timeline

2026-07-21 - CVE-2026-62565 published to NVD
2026-07-22 - Last updated in NVD database
July 2026 - Oracle addresses the issue in the Oracle Critical Patch Update - July 2026

Technical Details for CVE-2026-62565

Vulnerability Analysis

The vulnerability resides in the US Payroll Year End component of Oracle HRMS (US), a module within Oracle E-Business Suite that handles W-2 generation, tax reporting, and year-end payroll reconciliation. An authenticated attacker holding low-level application privileges can send crafted HTTP requests to reach data and operations that should be restricted. The flaw produces two outcomes: broad disclosure of confidential HRMS records and limited write access to selected records. Because payroll data includes Social Security numbers, wages, tax withholdings, and employer identifiers, disclosure risk is substantial for regulated environments.

Root Cause

Oracle classifies this issue under [CWE-200] (Exposure of Sensitive Information to an Unauthorized Actor). The root cause is insufficient authorization enforcement within the US Payroll Year End component. Access checks fail to validate that the requesting user is entitled to the underlying HRMS objects before returning or accepting modifications. Oracle has not published deeper technical detail beyond the July 2026 Critical Patch Update advisory.

Attack Vector

The attack vector is network-based over HTTP. The attacker must hold valid low-privileged credentials on the target Oracle E-Business Suite instance, but no user interaction is required. Attack complexity is low and the scope is unchanged. The vulnerability primarily impacts confidentiality (High) and integrity (Low), with no direct availability impact. Externally exposed EBS deployments are the most exposed, but any tenant-accessible instance is in scope. No public proof-of-concept, exploit database entry, or CISA KEV listing exists at the time of publication, and the EPSS probability is 0.186%.

Detection Methods for CVE-2026-62565

Indicators of Compromise

Unexpected HTTP requests to US Payroll Year End URLs (for example, paths containing PayUSYEArchiver, PayUSW2, or pay_us_ye_*) originating from low-privileged accounts.
FND user sessions performing HRMS record reads or updates that fall outside their assigned responsibilities in FND_RESPONSIBILITY and FND_USER_RESP_GROUPS.
Bulk retrieval or export of PAY_US_*, PAY_ASSIGNMENT_ACTIONS, or W-2 related tables from non-payroll administrator accounts.

Detection Strategies

Correlate Oracle EBS access logs (FND_LOG_MESSAGES, FND_UNSUCCESSFUL_LOGINS, Apache access logs) with responsibility-to-function mappings to flag out-of-role access to Payroll Year End functions.
Enable and review Oracle audit policies (AUDIT SELECT, UPDATE, INSERT, DELETE ON pay_us_*) on payroll schemas to capture data-layer activity.
Baseline normal Payroll Year End activity by user, IP, and time window, then alert on volumetric or after-hours deviations.

Monitoring Recommendations

Forward EBS Apache, concurrent manager, and database audit logs to a central analytics platform for cross-source correlation.
Alert on new or modified FND_USER accounts granted HRMS or Payroll responsibilities without an approved change ticket.
Track egress volume from EBS application tiers to detect large payroll data exfiltration patterns.

How to Mitigate CVE-2026-62565

Immediate Actions Required

Apply the fixes released in the Oracle Critical Patch Update - July 2026 to all Oracle E-Business Suite instances running HRMS (US) versions 12.2.3 through 12.2.15.
Inventory all EBS users with HRMS or Payroll responsibilities and revoke access that is not required for current job function.
Rotate credentials for any low-privileged EBS accounts that show anomalous access to Payroll Year End functions.

Patch Information

Oracle addressed CVE-2026-62565 in the July 2026 Critical Patch Update. Administrators should follow the patch application steps in the Oracle Security Alert - July 2026 and validate post-patch functionality against a non-production clone before rolling to production. Apply patches during the next maintenance window and confirm the fix by reviewing the AD_BUGS and AD_PATCH_RUN_BUG_ACTIONS tables for the corresponding bug numbers.

Workarounds

Restrict network access to the EBS application tier so that only trusted corporate networks or VPN clients can reach HTTP endpoints.
Temporarily remove the US Payroll Year End menu functions from non-essential responsibilities using Oracle's Function Security screens.
Enforce multi-factor authentication on all EBS accounts to raise the cost of credential-based access required for exploitation.

bash

# Configuration example: audit access to Payroll Year End tables
sqlplus / as sysdba <<EOF
AUDIT SELECT, INSERT, UPDATE, DELETE ON apps.pay_us_rpt_totals BY ACCESS;
AUDIT SELECT, INSERT, UPDATE, DELETE ON apps.pay_assignment_actions BY ACCESS;
AUDIT SELECT ON apps.pay_us_employee_w2_report_v BY ACCESS;
EOF