CVE-2026-62542: Oracle Advanced Benefits Auth Bypass Flaw

CVE-2026-62542 Overview

CVE-2026-62542 is an access control vulnerability [CWE-284] in the Oracle Advanced Benefits product of Oracle E-Business Suite. The flaw resides in the Self Service Benefits component and affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access via HTTP can exploit this issue to compromise Oracle Advanced Benefits. Successful exploitation results in unauthorized update, insert, or delete access to some accessible data, unauthorized read access to a subset of data, and a partial denial of service condition.

Critical Impact
Authenticated attackers can modify or read subsets of benefits data and cause partial service disruption over HTTP without user interaction.

Affected Products

Oracle E-Business Suite — Oracle Advanced Benefits 12.2.3
Oracle E-Business Suite — Oracle Advanced Benefits versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Advanced Benefits 12.2.15

Discovery Timeline

2026-07-21 - Oracle publishes the July 2026 Critical Patch Update advisory referencing this vulnerability
2026-07-21 - CVE-2026-62542 published to NVD
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-62542

Vulnerability Analysis

The vulnerability is categorized as Improper Access Control [CWE-284] within the Self Service Benefits component of Oracle Advanced Benefits. Oracle Advanced Benefits is a self-service Human Resources application used by employees to enroll in and manage benefits programs. The affected component exposes HTTP endpoints that authenticated users interact with through the E-Business Suite web tier.

The access control weakness allows an authenticated user with only low privileges to perform actions beyond their intended authorization scope. Attackers can read a subset of benefits data, modify records through unauthorized insert, update, or delete operations, and trigger a partial denial of service against the application. Because the attack occurs over the network with low complexity and no user interaction, exploitation can be automated once an attacker holds valid low-tier credentials.

The scope remains unchanged, meaning the impact stays confined to Oracle Advanced Benefits and does not cross a security authority boundary. However, the ability to alter benefits records introduces integrity risks to HR and payroll workflows dependent on this data.

Root Cause

The root cause is insufficient authorization enforcement in the Self Service Benefits component. The application does not adequately validate whether a requesting user is permitted to perform the requested operation on the target resource. Oracle has not published detailed root-cause specifics beyond the Critical Patch Update advisory.

Attack Vector

The attack vector is network-based HTTP traffic against the Oracle E-Business Suite web tier. The attacker must possess valid low-privilege credentials to authenticate before invoking the vulnerable Self Service Benefits functionality. No user interaction is required. Refer to the Oracle July 2026 Security Alert for vendor-supplied technical context.

No public proof-of-concept exploit is available at the time of publication.

Detection Methods for CVE-2026-62542

Indicators of Compromise

Unexpected insert, update, or delete operations against Oracle Advanced Benefits tables performed by low-privileged accounts.
HTTP requests to Self Service Benefits URLs originating from user accounts that do not typically access benefits self-service functionality.
Application error spikes or partial service outages localized to the Advanced Benefits module.

Detection Strategies

Enable and review Oracle E-Business Suite Sign-On Audit and Page Access Tracking to identify anomalous access patterns to Self Service Benefits pages.
Correlate database audit logs of BEN_* schema modifications with the authenticated web session initiating the request.
Monitor web tier access logs for repeated or high-volume requests to Advanced Benefits endpoints from a single authenticated session.

Monitoring Recommendations

Forward Oracle EBS application, database audit, and Apache access logs to a centralized SIEM for correlation and long-term retention.
Baseline normal Self Service Benefits usage per role and alert on deviations such as off-hours activity or unusual data volumes.
Track authentication events for low-privileged EBS accounts and alert on privilege boundary violations.

How to Mitigate CVE-2026-62542

Immediate Actions Required

Apply the July 2026 Oracle Critical Patch Update for E-Business Suite to all environments running Oracle Advanced Benefits 12.2.3 through 12.2.15.
Inventory all E-Business Suite instances and confirm patch levels for the Advanced Benefits and Self Service Benefits modules.
Review recent activity in Advanced Benefits for unauthorized data modifications prior to patching.

Patch Information

Oracle addressed CVE-2026-62542 in the July 2026 Critical Patch Update. Administrators should download and apply the relevant patch set for Oracle E-Business Suite 12.2 as documented in the Oracle July 2026 Security Alert. Follow Oracle's standard EBS patching procedure, including running adop for online patching and validating the deployment in a non-production environment first.

Workarounds

Restrict network access to the E-Business Suite web tier so only trusted internal networks can reach Self Service Benefits endpoints.
Enforce least-privilege responsibilities and remove Advanced Benefits access from users who do not require it.
Enable enhanced auditing on BEN_* schema objects to record all data-modification activity until the patch is applied.

bash

# Patch application example using adop online patching
# 1. Prepare the patch cycle
adop phase=prepare

# 2. Apply the July 2026 CPU patch
adop phase=apply patches=<CPU_PATCH_NUMBER> workers=8

# 3. Finalize, cutover, and cleanup
adop phase=finalize
adop phase=cutover
adop phase=cleanup