CVE-2026-61323: Oracle Advanced Benefits Auth Bypass Flaw

CVE-2026-61323 Overview

CVE-2026-61323 affects the Oracle Advanced Benefits product within Oracle E-Business Suite, specifically the Internal Operations component. The vulnerability exists in version 12.2.15 and enables a low-privileged attacker with network access via HTTP to compromise the application. Successful exploitation results in unauthorized access to sensitive data or complete read access to all Oracle Advanced Benefits data. The flaw is classified under [CWE-284] Improper Access Control, indicating that the application fails to enforce sufficient authorization checks on protected resources.

Critical Impact
Authenticated attackers can retrieve confidential benefits and human resources data across the entire Oracle Advanced Benefits environment through remote HTTP requests.

Affected Products

Oracle E-Business Suite
Oracle Advanced Benefits
Version 12.2.15 (Internal Operations component)

Discovery Timeline

2026-07-21 - CVE-2026-61323 published to NVD
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-61323

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Advanced Benefits, a module used to administer employee benefits programs within Oracle E-Business Suite. An attacker holding a low-privileged application account can send crafted HTTP requests to functions that lack proper access control enforcement. The scope remains unchanged, meaning exploitation affects only the vulnerable component. However, the confidentiality impact is high because compromised requests can return the full set of data accessible to the Advanced Benefits application.

The issue affects confidentiality only. Integrity and availability of the target data remain intact, so attackers cannot modify records or disrupt service through this specific flaw. Oracle addressed the issue in the July 2026 Critical Patch Update.

Root Cause

The root cause is improper access control [CWE-284] within the Internal Operations component. Authorization decisions are either missing or misapplied when handling requests to sensitive endpoints. Application-layer role checks do not sufficiently restrict which authenticated users can retrieve benefits records, allowing standard low-privilege accounts to bypass the intended data segregation.

Attack Vector

The attack vector is network-based over HTTP with low attack complexity. The attacker must possess valid low-level credentials for the Oracle E-Business Suite environment. No user interaction is required. Exploitation involves issuing HTTP requests to Advanced Benefits functionality where authorization checks are missing, allowing the attacker to enumerate or exfiltrate records belonging to other users or organizational units. Because Oracle has not published exploitation details, technical specifics of the vulnerable endpoints are not publicly documented. Refer to the Oracle Critical Patch Update Advisory - July 2026 for vendor guidance.

Detection Methods for CVE-2026-61323

Indicators of Compromise

Unusual HTTP request patterns from low-privileged Oracle E-Business Suite accounts targeting Advanced Benefits URLs under the Internal Operations component.
Repeated access attempts by a single user session to enumerate benefits records across multiple employee IDs or organizations.
Large-volume data retrieval operations from user accounts that do not typically access Advanced Benefits functionality.

Detection Strategies

Review Oracle E-Business Suite FND_LOG_MESSAGES and application access logs for anomalous requests to Advanced Benefits functions by non-HR personnel.
Correlate web server logs from Oracle HTTP Server against user role assignments to identify access outside expected responsibilities.
Deploy database auditing on Advanced Benefits schema tables to record SELECT activity and detect bulk read operations.

Monitoring Recommendations

Enable Oracle E-Business Suite Sign-On Audit at the FORM level to track function-level access within Advanced Benefits.
Monitor authentication logs for low-privileged accounts issuing unexpected HTTP traffic to internal operations endpoints.
Establish baselines for normal Advanced Benefits query volumes and alert on deviations exceeding two standard deviations.

How to Mitigate CVE-2026-61323

Immediate Actions Required

Apply the fixes provided in the Oracle July 2026 Critical Patch Update to all Oracle E-Business Suite 12.2.15 environments running Advanced Benefits.
Audit user role assignments for the Advanced Benefits responsibility and remove access from accounts that do not require it.
Restrict network-level access to the Oracle E-Business Suite web tier to trusted internal networks and VPN endpoints.

Patch Information

Oracle addressed CVE-2026-61323 in the July 2026 Critical Patch Update. Administrators should download and apply the appropriate patch set for Oracle E-Business Suite 12.2.15 as documented in the Oracle Security Alert - July 2026. Verify patch application by reviewing the AD_BUGS table and confirming the associated bug numbers are recorded.

Workarounds

Temporarily revoke the Advanced Benefits responsibility from non-essential user accounts until patching completes.
Apply Oracle E-Business Suite function security exclusions to block access to the affected Internal Operations functions where feasible.
Route Oracle E-Business Suite web traffic through a reverse proxy with URL allow-listing to limit exposure to affected endpoints.

bash

# Configuration example: revoke responsibility using FND scripts
sqlplus apps/<password> <<EOF
EXEC fnd_user_pkg.delresp(
  username        => 'TARGET_USER',
  resp_app        => 'BEN',
  resp_key        => 'BEN_MANAGER_SS',
  security_group  => 'STANDARD'
);
COMMIT;
EOF