CVE-2026-46938: Oracle Cost Management Privilege Escalation

CVE-2026-46938 Overview

CVE-2026-46938 affects the Oracle Cost Management product within Oracle E-Business Suite, specifically the Cost Planning component. The flaw allows a high-privileged attacker with network access over HTTP to fully compromise Oracle Cost Management. Successful exploitation results in complete takeover of the application, including impacts to confidentiality, integrity, and availability. The vulnerability is tracked under CWE-284: Improper Access Control and affects supported versions 12.2.3 through 12.2.15.

Critical Impact
An authenticated attacker with high privileges can take over Oracle Cost Management over the network, compromising confidentiality, integrity, and availability of the application.

Affected Products

Oracle E-Business Suite — Oracle Cost Management 12.2.3
Oracle E-Business Suite — Oracle Cost Management versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Cost Management 12.2.15

Discovery Timeline

2026-06-17 - CVE-2026-46938 published to the National Vulnerability Database
2026-06-17 - Oracle publishes security alert addressing the issue in the Oracle Critical Patch Update
2026-06-18 - CVE-2026-46938 last updated in NVD

Technical Details for CVE-2026-46938

Vulnerability Analysis

The vulnerability resides in the Cost Planning component of Oracle Cost Management. It is classified as an improper access control weakness ([CWE-284]). An authenticated user holding high privileges within the Oracle E-Business Suite environment can issue crafted HTTP requests that bypass intended access restrictions inside Cost Planning workflows. The result is full takeover of the Oracle Cost Management module.

Because the scope remains unchanged, the impact is confined to the vulnerable component. However, Cost Management integrates tightly with financial, inventory, and procurement processes, so a compromise can expose sensitive business data and disrupt downstream operations.

Root Cause

The root cause is improper enforcement of access control within the Cost Planning component. Authorization checks do not adequately restrict privileged operations exposed over HTTP, allowing a high-privileged attacker to perform actions that should be reserved for stricter trust boundaries.

Attack Vector

Exploitation requires network access to the Oracle E-Business Suite HTTP endpoint and valid high-privilege credentials. The attacker does not require user interaction and the attack complexity is low. No public proof-of-concept exploit code is available, and the issue is not listed in the CISA Known Exploited Vulnerabilities catalog. EPSS data places the current probability of exploitation at approximately 0.465%.

No verified exploit code is available. Refer to the Oracle Critical Patch Update advisory for vendor-supplied technical details.

Detection Methods for CVE-2026-46938

Indicators of Compromise

Unexpected administrative or configuration changes within Oracle Cost Management Cost Planning modules.
Anomalous HTTP requests to Oracle E-Business Suite endpoints from accounts that do not typically perform Cost Planning operations.
Audit log entries showing privileged Cost Management actions outside normal business hours or change windows.

Detection Strategies

Enable and review Oracle E-Business Suite Sign-On Audit and FND audit trails for Cost Management responsibilities.
Baseline normal HTTP request patterns to Cost Planning URLs and alert on deviations in volume, source, or parameters.
Correlate database-level changes in Cost Management tables with the originating application user and session.

Monitoring Recommendations

Forward Oracle E-Business Suite application, database, and web tier logs to a centralized analytics platform for cross-source correlation.
Monitor for privileged account use from new IP addresses or unusual geographies.
Track configuration changes to Cost Planning setups and alert on modifications by accounts outside an approved change list.

How to Mitigate CVE-2026-46938

Immediate Actions Required

Apply the patches provided in the Oracle Critical Patch Update — June 2026 to all affected E-Business Suite environments.
Inventory all Oracle E-Business Suite deployments running versions 12.2.3 through 12.2.15 and prioritize patching for internet-reachable instances.
Review and reduce the number of accounts holding high-privilege Cost Management responsibilities.

Patch Information

Oracle addressed CVE-2026-46938 in the June 2026 Critical Patch Update. Administrators should download and apply the relevant patch for Oracle E-Business Suite 12.2 from My Oracle Support, following the instructions in the Oracle security alert. Patching is the only complete remediation.

Workarounds

Restrict network access to the Oracle E-Business Suite HTTP tier using firewalls, VPN, or reverse proxy allow-lists until patches are deployed.
Enforce multi-factor authentication on accounts with Cost Management responsibilities to reduce the risk of credential abuse.
Temporarily remove Cost Planning responsibilities from accounts that do not require them for business operations.

bash

# Example: restrict access to the E-Business Suite HTTP tier at the network layer
# Replace 10.0.0.0/24 with the trusted administrative subnet
iptables -A INPUT -p tcp --dport 8000 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP