CVE-2026-83448: Oracle Bills of Material Auth Bypass Flaw

CVE-2026-83448 Overview

CVE-2026-83448 is a high-severity vulnerability in the Oracle Bills of Material product of Oracle E-Business Suite. The flaw resides in the Internal Operations component and affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access via HTTP can exploit the vulnerability to compromise Oracle Bills of Material. Successful exploitation allows unauthorized creation, deletion, or modification of critical data, along with unauthorized read access to all Oracle Bills of Material accessible data.

Critical Impact
Authenticated remote attackers can compromise the confidentiality and integrity of all data accessible to the Oracle Bills of Material module, including manufacturing bill structures and related business records.

Affected Products

Oracle E-Business Suite - Oracle Bills of Material version 12.2.3
Oracle E-Business Suite - Oracle Bills of Material versions 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle Bills of Material version 12.2.15

Discovery Timeline

2026-09-15 - CVE-2026-83448 published to the National Vulnerability Database
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-83448

Vulnerability Analysis

The vulnerability affects the Internal Operations component of Oracle Bills of Material, a core module within Oracle E-Business Suite used to define product structures and manufacturing recipes. An attacker with a valid low-privileged account can send crafted HTTP requests to reach functionality that should require stronger authorization. The impact spans both confidentiality and integrity: an attacker can read and manipulate all data accessible to the module. Availability is not affected, indicating the flaw enables data-layer compromise rather than service disruption. Exploitation does not require user interaction, which broadens the scope of viable attack scenarios inside enterprise networks.

Root Cause

Oracle has not disclosed the underlying defect in public advisories. The attack profile is consistent with a broken access control or authorization bypass condition within the Internal Operations HTTP endpoints. The low privilege prerequisite combined with high impact on confidentiality and integrity indicates that the affected code path does not adequately validate the caller's entitlements before performing read or write operations against Bills of Material records.

Attack Vector

The attack vector is network-based over HTTP against the Oracle E-Business Suite application tier. The attacker must hold a valid, low-privileged account on the target instance. Once authenticated, the attacker issues crafted requests to the vulnerable Internal Operations endpoints to read, create, modify, or delete Bills of Material data. Because attack complexity is low and no user interaction is required, exploitation can be scripted and repeated at scale. Refer to the Oracle Security Alert CSPUSEP2026 for vendor-provided technical context.

Detection Methods for CVE-2026-83448

Indicators of Compromise

Unexpected HTTP POST or GET requests to Oracle Bills of Material Internal Operations URLs originating from accounts that do not normally interact with manufacturing modules.
Unauthorized INSERT, UPDATE, or DELETE activity against BOM_* schema tables outside of scheduled batch windows.
Application server audit records showing low-privileged users invoking Internal Operations functions.
Anomalous bulk read operations against Bills of Material data attributed to service or generic user accounts.

Detection Strategies

Enable Oracle E-Business Suite Sign-On Audit and Page Access Tracking, and alert on access to Internal Operations pages by unexpected responsibilities.
Correlate database session activity with application user identity to surface BOM schema modifications that lack a corresponding approved business transaction.
Baseline normal HTTP request patterns for the E-Business Suite application tier and alert on deviations targeting Internal Operations endpoints.

Monitoring Recommendations

Forward Oracle E-Business Suite application logs, Oracle HTTP Server access logs, and database audit trails to a centralized SIEM for correlation.
Monitor for privilege abuse patterns where a low-privileged account performs data operations normally reserved for manufacturing administrators.
Track authentication anomalies on E-Business Suite accounts, including logins from new geolocations or off-hours activity preceding Bills of Material changes.

How to Mitigate CVE-2026-83448

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert CSPUSEP2026 to all Oracle E-Business Suite environments running versions 12.2.3 through 12.2.15.
Inventory user accounts with access to Oracle Bills of Material responsibilities and remove entitlements that are not required.
Review recent Bills of Material data changes for signs of unauthorized creation, modification, or deletion prior to patch deployment.

Patch Information

Oracle addressed CVE-2026-83448 in the Security Alert CSPUSEP2026 advisory. Administrators should download and apply the patch bundle for Oracle E-Business Suite 12.2 to remediate all affected versions from 12.2.3 through 12.2.15. Follow the standard Oracle patching procedure, including running adop phases in a test environment before promoting to production.

Workarounds

Restrict network access to the Oracle E-Business Suite application tier so that only trusted internal networks can reach Internal Operations endpoints.
Enforce strong authentication and least-privilege responsibility assignments for all E-Business Suite users until the patch is deployed.
Enable and review Oracle E-Business Suite audit trails for the Bills of Material module to detect exploitation attempts.

bash

# Example: enable Sign-On Audit at the FORM level in Oracle E-Business Suite
# Set the profile option using FNDLOAD or the System Administrator responsibility
# Profile: Sign-On:Audit Level = FORM
# Then query audit data to review Bills of Material access
sqlplus apps/<password> <<EOF
SELECT user_name, responsibility_name, form_name, start_time, end_time
FROM   apps.fnd_login_resp_forms_v
WHERE  form_name LIKE 'BOM%'
AND    start_time > SYSDATE - 7
ORDER  BY start_time DESC;
EOF