CVE-2026-83450: Oracle Bills of Material Privilege Escalation

CVE-2026-83450 Overview

CVE-2026-83450 affects the Oracle Bills of Material product within Oracle E-Business Suite, specifically the Setup Workbench component. The flaw impacts supported versions 12.2.3 through 12.2.15 and maps to improper privilege management [CWE-269]. A high-privileged attacker with network access over HTTP can compromise Oracle Bills of Material. Because the vulnerability produces a scope change, successful exploitation may impact additional products beyond the vulnerable component. Successful attacks can result in a full takeover of Oracle Bills of Material.

Critical Impact
Successful exploitation results in complete takeover of Oracle Bills of Material with confidentiality, integrity, and availability impact extending beyond the vulnerable component.

Affected Products

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

Discovery Timeline

2026-09-15 - CVE-2026-83450 published to the National Vulnerability Database (NVD)
2026-09-17 - Last updated in NVD database

Technical Details for CVE-2026-83450

Vulnerability Analysis

The vulnerability resides in the Setup Workbench component of Oracle Bills of Material, a manufacturing module of Oracle E-Business Suite. The issue is classified under improper privilege management [CWE-269]. An authenticated attacker holding elevated privileges can abuse HTTP-facing functionality to escalate control over the Bills of Material product. Because the flaw crosses a trust boundary, exploitation affects components outside the initially vulnerable module. Oracle documents the issue in its CSPUSEP2026 security alert bundle.

Root Cause

The root cause is improper enforcement of privilege boundaries in the Setup Workbench component. Actions available to a high-privileged user are not sufficiently constrained relative to the scope they should operate on. This allows the attacker to influence resources beyond the intended trust boundary, producing the scope change reflected in the CVSS vector. Exploitation requires a specific set of preconditions, making the attack complex rather than trivial.

Attack Vector

The attack is remote and delivered over HTTP against the E-Business Suite web tier. The attacker must already hold high privileges within the application, meaning credential compromise or insider access is a prerequisite. No user interaction is required to complete the attack. Public proof-of-concept code is not currently available, and no in-the-wild exploitation has been reported by CISA. The EPSS probability at publication is 0.386%.

Exploitation code is not publicly available. See the Oracle Security Alert CSPUSEP2026 for authoritative technical details.

Detection Methods for CVE-2026-83450

Indicators of Compromise

Unexpected administrative or configuration changes within the Bills of Material Setup Workbench module.
HTTP requests to Bills of Material Setup Workbench endpoints originating from high-privileged accounts outside normal working windows or from unusual source addresses.
Cross-module changes in E-Business Suite that correlate temporally with Bills of Material Setup Workbench activity.

Detection Strategies

Enable and forward Oracle E-Business Suite application audit logs, including FND sign-on and page access logs, to a centralized analytics platform.
Baseline normal Setup Workbench usage for each privileged user and alert on deviations in frequency, endpoints touched, or session characteristics.
Correlate database-level audit trails on Bills of Material schema objects with corresponding web-tier HTTP access logs to identify unauthorized changes.

Monitoring Recommendations

Monitor Oracle HTTP Server access logs for anomalous request patterns targeting Bills of Material URLs.
Track privileged responsibility grants and role assignments within Oracle E-Business Suite to detect unauthorized privilege staging.
Alert on any modification to Bills of Material configuration data performed outside sanctioned change windows.

How to Mitigate CVE-2026-83450

Immediate Actions Required

Apply the patches distributed in the Oracle CSPUSEP2026 Security Alert to all Oracle E-Business Suite environments running Bills of Material versions 12.2.3 through 12.2.15.
Review and reduce accounts assigned high-privilege responsibilities in Oracle E-Business Suite, enforcing least privilege on Bills of Material access.
Rotate credentials for privileged application accounts that had access to the Setup Workbench prior to patching.

Patch Information

Oracle addressed CVE-2026-83450 in the Security Alert CSPUSEP2026. Administrators should consult the Oracle Security Alert CSPUSEP2026 advisory for the applicable patch identifiers, prerequisite bundles, and post-installation steps for E-Business Suite 12.2.x releases.

Workarounds

Restrict network reachability of the E-Business Suite web tier to trusted management networks and enforce VPN or zero-trust access for administrators.
Enforce multi-factor authentication on all Oracle E-Business Suite accounts holding Bills of Material Setup Workbench responsibilities.
Temporarily revoke Setup Workbench responsibilities from non-essential privileged users until patches are deployed.

bash

# Configuration example
# Consult Oracle Security Alert CSPUSEP2026 for authoritative patch commands.
# Example: apply the patch using adop in an EBS 12.2 environment
adop phase=apply patches=<CSPUSEP2026_PATCH_ID> workers=8
adop phase=finalize,cutover,cleanup