CVE-2026-70720: Oracle E-Business Suite Auth Bypass Flaw

CVE-2026-70720 Overview

CVE-2026-70720 affects the Oracle Production Scheduling product within Oracle E-Business Suite, specifically the Internal Operations component. Supported versions 12.2.3 through 12.2.15 are affected. The vulnerability allows a low-privileged attacker with network access via HTTP to compromise Oracle Production Scheduling. Successful exploitation results in unauthorized access to critical data or complete access to all Oracle Production Scheduling accessible data.

Critical Impact
A low-privileged authenticated attacker can access all data within Oracle Production Scheduling over the network with no user interaction required.

Affected Products

Oracle E-Business Suite - Oracle Production Scheduling 12.2.3
Oracle E-Business Suite - Oracle Production Scheduling 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle Production Scheduling 12.2.15

Discovery Timeline

2026-08-18 - CVE CVE-2026-70720 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70720

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Production Scheduling, part of the Oracle E-Business Suite. Oracle classifies the flaw as an information disclosure issue impacting confidentiality only, with no integrity or availability impact. An authenticated attacker with low privileges can send crafted HTTP requests to the affected service and retrieve data they are not authorized to view.

Because the impact vector is confidentiality-only, exploitation does not modify records or disrupt scheduling operations. Instead, it exposes production planning data, which typically includes manufacturing schedules, resource allocations, supplier information, and operational forecasts. Access to this data can support industrial espionage or downstream attacks against connected ERP components.

Root Cause

Oracle has not published detailed root cause information in the public advisory. The vulnerability characteristics indicate a broken access control or authorization flaw within the Internal Operations component. Authenticated users can invoke functionality or read records that should be restricted to higher-privileged roles. See the Oracle Security Alert for vendor-provided details.

Attack Vector

The attack is executed over the network using HTTP. The attacker requires valid but low-privileged credentials to the Oracle E-Business Suite environment. No user interaction is needed, and the attack complexity is low. The scope is unchanged, meaning the impact is limited to the vulnerable Oracle Production Scheduling component.

Exploitation requires network reachability to the Oracle E-Business Suite HTTP endpoints exposing Production Scheduling functionality. Environments that publish these endpoints to broad internal networks or to the internet increase the exposure surface.

Detection Methods for CVE-2026-70720

Indicators of Compromise

Anomalous HTTP requests to Oracle Production Scheduling endpoints from low-privileged user accounts.
Unexpected volume of read operations against Production Scheduling data by non-planning roles.
Access to Internal Operations component URLs from user sessions that do not normally interact with scheduling functions.

Detection Strategies

Enable Oracle E-Business Suite auditing on the Production Scheduling module and forward audit records to a centralized logging platform.
Baseline normal HTTP request patterns to Internal Operations endpoints and alert on deviations by user, source IP, or request rate.
Correlate authentication events with subsequent data access to identify low-privileged accounts retrieving sensitive scheduling records.

Monitoring Recommendations

Monitor web application firewall logs for repeated or scripted requests to Oracle Production Scheduling URLs.
Track privileged and low-privileged account activity separately to detect authorization boundary violations.
Review Oracle E-Business Suite sign-on audit tables for unusual session behavior against affected versions 12.2.3 through 12.2.15.

How to Mitigate CVE-2026-70720

Immediate Actions Required

Apply the Oracle Critical Patch Update referenced in the Oracle Security Alert to all Oracle E-Business Suite instances running Production Scheduling versions 12.2.3 through 12.2.15.
Inventory all Oracle Production Scheduling deployments and confirm patch level before returning systems to production use.
Review and tighten role assignments in Oracle E-Business Suite so that only required users hold access to the Internal Operations component.

Patch Information

Oracle addresses CVE-2026-70720 in the August 2026 Critical Patch Update. Refer to the Oracle Security Alert for patch identifiers, download instructions, and version-specific guidance for Oracle E-Business Suite 12.2.3 through 12.2.15.

Workarounds

Restrict HTTP access to Oracle Production Scheduling endpoints using network segmentation, VPN, or allowlisted source IP ranges until patching completes.
Remove unnecessary Production Scheduling responsibilities from user accounts that do not require them.
Increase audit logging verbosity on the Internal Operations component to capture forensic evidence in the event of exploitation attempts.

bash

# Configuration example
# Restrict access to Oracle Production Scheduling endpoints at the reverse proxy
# Example nginx location block limiting access to trusted planning subnet
location /OA_HTML/ProductionScheduling {
    allow 10.20.30.0/24;   # planning team subnet
    deny  all;
    proxy_pass http://ebs-backend;
}