CVE-2026-70837: Oracle Financials Auth Bypass Vulnerability

CVE-2026-70837 Overview

CVE-2026-70837 affects the Internal Operations component of Oracle Financials for Asia/Pacific, part of Oracle E-Business Suite. The vulnerability allows a low-privileged attacker with network access via HTTP to compromise the application. Successful exploitation results in unauthorized creation, deletion, or modification of critical data accessible to Oracle Financials for Asia/Pacific. Attackers also gain unauthorized read access to a subset of accessible data. Oracle E-Business Suite versions 12.2.3 through 12.2.15 are affected.

Critical Impact
A low-privileged network-based attacker can modify or delete critical financial data across Oracle Financials for Asia/Pacific without user interaction.

Affected Products

Oracle E-Business Suite 12.2.3 through 12.2.15
Oracle Financials for Asia/Pacific product line
Internal Operations component

Discovery Timeline

2026-08-18 - CVE-2026-70837 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70837

Vulnerability Analysis

The flaw resides in the Internal Operations component of Oracle Financials for Asia/Pacific within Oracle E-Business Suite. The vulnerability is remotely exploitable over HTTP with low attack complexity. An authenticated attacker holding low privileges can leverage the flaw without user interaction. The primary impact is on data integrity, allowing an attacker to create, modify, or delete records across the application's accessible data. Confidentiality impact is limited to a subset of accessible data. Availability is not directly affected.

Oracle's August 2026 Security Alert lists this issue among the E-Business Suite advisories. Refer to the Oracle Security Alert August 2026 for the vendor's technical bulletin.

Root Cause

Oracle has not published detailed root-cause analysis. Based on the CVSS metrics and impact profile, the flaw appears to be a broken access control or input validation issue in a network-facing operation. The bug allows an authenticated user to perform write operations that should require higher privileges or additional authorization checks.

Attack Vector

An attacker authenticates to the E-Business Suite instance with any low-privileged account. The attacker then sends crafted HTTP requests to the Internal Operations endpoints exposed by the Oracle Financials for Asia/Pacific module. Because the attack complexity is low and no user interaction is required, exploitation can be automated once a valid session is obtained. Public exploit code is not currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

No verified proof-of-concept code is available. Consult the vendor advisory for technical specifics.

Detection Methods for CVE-2026-70837

Indicators of Compromise

Unexpected write, update, or delete operations against Oracle Financials for Asia/Pacific tables performed by low-privileged accounts.
HTTP requests to Internal Operations endpoints originating from user sessions that historically only perform read operations.
Anomalous modification timestamps on financial records tied to Asia/Pacific ledgers or subledgers.

Detection Strategies

Enable and review Oracle E-Business Suite Sign-On Audit and Page Access Tracking logs for Internal Operations pages.
Correlate application-tier HTTP access logs with database audit records to identify privilege mismatches between the user role and the data modified.
Baseline normal user activity per role and alert on deviations that touch Internal Operations functions.

Monitoring Recommendations

Forward E-Business Suite application logs, Oracle HTTP Server access logs, and database audit trails to a centralized SIEM.
Monitor for elevated volumes of POST and PUT requests to Financials for Asia/Pacific URLs from low-privileged accounts.
Alert on modifications to financial master data outside of change windows.

How to Mitigate CVE-2026-70837

Immediate Actions Required

Apply the Oracle August 2026 Critical Patch Update to all E-Business Suite instances running versions 12.2.3 through 12.2.15.
Inventory all Oracle E-Business Suite deployments and confirm the Oracle Financials for Asia/Pacific module status.
Restrict network access to E-Business Suite HTTP endpoints so they are not exposed to untrusted networks.
Review recent activity on Internal Operations pages for signs of unauthorized modification.

Patch Information

Oracle addressed CVE-2026-70837 in the August 2026 Security Alert. Administrators should download and apply the relevant patch bundle for Oracle E-Business Suite 12.2 as documented in the Oracle Security Alert August 2026. Test the patch in a non-production environment before deployment to production instances.

Workarounds

Enforce least-privilege role assignments and remove unnecessary responsibilities that grant access to Internal Operations functions.
Place E-Business Suite behind a reverse proxy or web application firewall and restrict access to Internal Operations URLs by source IP and role.
Enable database-level auditing on tables backing Oracle Financials for Asia/Pacific to preserve forensic evidence until patching is complete.

bash

# Verify installed E-Business Suite patch level and version
sqlplus apps/<password> <<EOF
SELECT release_name FROM fnd_product_groups;
SELECT bug_number, last_update_date
  FROM ad_bugs
 WHERE bug_number IN ('<August2026_CPU_bug_id>');
EOF