CVE-2026-61019: Oracle E-Business Suite Auth Bypass Flaw

CVE-2026-61019 Overview

CVE-2026-61019 affects the Oracle Customers Online product within Oracle E-Business Suite, specifically the Internal Operations component. The flaw impacts supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access over HTTP can exploit this vulnerability without user interaction. Successful exploitation allows unauthorized creation, deletion, or modification of critical data, along with unauthorized read access to all Oracle Customers Online accessible data. Oracle published this issue in the July 2026 Critical Patch Update.

Critical Impact
Authenticated remote attackers can compromise the confidentiality and integrity of all data accessible through Oracle Customers Online.

Affected Products

Oracle E-Business Suite — Oracle Customers Online 12.2.3
Oracle E-Business Suite — Oracle Customers Online 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Customers Online 12.2.15

Discovery Timeline

2026-07-21 - CVE-2026-61019 published to NVD
2026-07-21 - Last updated in NVD database

Technical Details for CVE-2026-61019

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Customers Online, a Customer Relationship Management module within Oracle E-Business Suite. An attacker requires only low privileges and network access via HTTP to trigger the flaw. Exploitation does not require user interaction and does not cross a security scope boundary.

Successful exploitation grants attackers full read access to all data accessible by Oracle Customers Online. Attackers can also create, modify, or delete critical records within the application. This includes customer master data, contact information, and related business records processed by the module.

Availability is not directly impacted, but data integrity loss can disrupt downstream business processes that depend on customer records. Oracle categorizes the issue in the July 2026 Critical Patch Update advisory.

Root Cause

Oracle has not publicly disclosed the specific technical root cause. The advisory indicates the flaw resides in server-side logic within the Internal Operations component. The combination of low privilege requirement and high confidentiality plus integrity impact suggests an access control or input handling defect in an authenticated HTTP endpoint.

Attack Vector

The attack vector is network-based over HTTP. An authenticated user with minimal application privileges submits crafted requests to a vulnerable endpoint of Oracle Customers Online. The request bypasses intended authorization checks or manipulates data operations that should not be available to the caller. No client-side interaction is needed to complete the attack.

Refer to the Oracle Security Advisory - July 2026 for authoritative technical guidance.

Detection Methods for CVE-2026-61019

Indicators of Compromise

Unexpected creation, modification, or deletion of records in Oracle Customers Online tables by low-privileged accounts.
HTTP requests to Oracle E-Business Suite Internal Operations endpoints originating from user sessions that historically do not access those functions.
Anomalous bulk read operations against customer master data outside normal business hours.

Detection Strategies

Enable Oracle E-Business Suite audit logging for the Oracle Customers Online module and monitor for privilege anomalies.
Baseline expected HTTP request patterns for the Internal Operations component and alert on deviations.
Correlate application-level audit events with database change auditing to identify unauthorized data modifications.

Monitoring Recommendations

Ingest Oracle E-Business Suite application logs, Oracle Database audit trails, and HTTP access logs into a centralized SIEM.
Alert on Data Manipulation Language (DML) operations against customer tables performed by accounts outside the expected role set.
Track authentication events for accounts targeting Oracle Customers Online URLs following the publication date of the advisory.

How to Mitigate CVE-2026-61019

Immediate Actions Required

Apply the July 2026 Critical Patch Update from Oracle to all Oracle E-Business Suite deployments running versions 12.2.3 through 12.2.15.
Inventory all internet-exposed Oracle E-Business Suite instances and prioritize patching those first.
Review Oracle Customers Online user accounts and remove unnecessary access, especially for accounts that only need read-only functionality.

Patch Information

Oracle released fixes for CVE-2026-61019 in the July 2026 Critical Patch Update. Administrators should download and apply the relevant patch set for their Oracle E-Business Suite 12.2.x release. Full details are available in the Oracle Security Advisory - July 2026.

Workarounds

Restrict network access to Oracle E-Business Suite HTTP endpoints using a Web Application Firewall or reverse proxy allow-list until patches are applied.
Temporarily disable the Oracle Customers Online responsibility for users who do not require it as a compensating control.
Enforce multi-factor authentication for all Oracle E-Business Suite users to reduce the risk of credential-based exploitation.

bash

# Example: verify installed Oracle E-Business Suite patch level
sqlplus apps/<password> <<EOF
SELECT bug_number, creation_date
  FROM ad_bugs
 WHERE bug_number IN ('<July 2026 CPU patch numbers>')
 ORDER BY creation_date DESC;
EOF