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How CVE-2026-61327 Works
This vulnerability resides in the Internal Operations component of the Oracle Bills of Material product within Oracle E-Business Suite (EBS). Affected versions are 12.2.13 through 12.2.15.
The root cause is an improper authorization flaw (CWE-284). The HTTP request handling logic for Internal Operations interfaces only verifies that a user is authenticated (logged in) but fails to perform adequate authorization checks to determine if the authenticated user has the necessary permissions to access the specific internal operation being invoked.
A low-privileged attacker with network access can exploit this by sending crafted HTTP requests directly to these unprotected internal endpoints. Because the system does not validate whether the low-privilege account is authorized to perform the action, the attacker can successfully:
– Create, delete, or modify critical data within the Bills of Material module.
– Read and gain complete access to all accessible Bills of Material data.
The vulnerability is easily exploitable, requires low attacker privileges, and has a CVSS 3.1 Base Score of 8.1 (High) , with High impact on both Confidentiality and Integrity. No Confidentiality impact is present. No public exploit is currently available.
DailyCVE Form:
Platform: Oracle E-Business Suite
Version: 12.2.13 – 12.2.15
Vulnerability: Improper Access Control
Severity: High (8.1 CVSS)
date: 2026-07-21
Prediction: 2026-07-31 (CPU July)
What Undercode Say: Analytics
The following analytics provide insight into the vulnerability’s risk and potential impact.
EPSS Score: 0.00365 (0.365% probability of exploitation in the wild within 30 days).
Exploit Price Estimation: Approximately USD $5,000 – $25,000.
CTI Interest Score: 0.61+ (indicating elevated interest from the threat intelligence community).
Affected Configurations:
- Oracle Bills of Material 12.2.13
- Oracle Bills of Material 12.2.14
- Oracle Bills of Material 12.2.15
Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Bash Command to Check Installed Version:
Connect to the Oracle E-Business Suite database and query the version sqlplus -s apps/<apps_password> <<EOF SET PAGESIZE 0 FEEDBACK OFF VERIFY OFF HEADING OFF ECHO OFF SELECT RELEASE_NAME FROM FND_PRODUCT_GROUPS; EXIT; EOF
SQL Query to Identify Affected Components:
-- Check for Bills of Material product version SELECT PATCH_LEVEL, BUG_FIX_LEVEL FROM AD_APPLIED_PATCHES WHERE APPLICATION_SHORT_NAME = 'BOM' AND PATCH_LEVEL LIKE '12.2.%';
How Exploit:
While no public exploit is available, the theoretical exploitation path is as follows:
1. Reconnaissance: An attacker with a low-privileged account (e.g., a standard user) identifies the Oracle E-Business Suite instance and the Bills of Material module endpoints.
2. Endpoint Discovery: The attacker enumerates Internal Operations API endpoints. These may include URLs such as:
https://<ebs-host>:<port>/OA_HTML/BomInternalOperation https://<ebs-host>:<port>/oracle/apps/bom/internal/
3. Craft Malicious Request: The attacker crafts an HTTP request targeting an identified endpoint. The request includes:
– Valid Session Cookie: The attacker’s authenticated session identifier.
– Malicious Payload: Parameters designed to create, read, update, or delete BOM data (e.g., operation=DELETE&bom_id=12345).
4. Bypass Authorization: The server processes the request. Because the Internal Operations component lacks proper authorization checks, it executes the operation using the low-privileged user’s context, bypassing role-based restrictions.
5. Data Manipulation: The attacker successfully performs unauthorized actions on critical manufacturing data, leading to data corruption, theft, or business disruption.
Example cURL Command (Theoretical):
This is a theoretical example and may not work without specific session and endpoint details. curl -X POST "https://<ebs-host>/OA_HTML/BomInternalOperation" \ -H "Cookie: <session_cookie>" \ -H "Content-Type: application/x-www-form-urlencoded" \ -d "operation=DELETE&bom_id=<target_bom_id>&confirm=true"
Protection:
- Apply Oracle Critical Patch Update (CPU) July 2026: This is the primary and most effective mitigation. Oracle has released fixes that add role-based and operation-type authorization checks to all Internal Operations HTTP interfaces, rejecting unauthorized requests from low-privileged accounts.
- Restrict Network Access: Limit access to the Oracle E-Business Suite to only trusted internal networks using firewalls and network segmentation.
- Implement Web Application Firewall (WAF): Deploy a WAF to monitor and block suspicious requests targeting Internal Operations endpoints.
- Principle of Least Privilege: Regularly review and enforce the principle of least privilege for all user accounts within the E-Business Suite.
- Monitor Logs: Actively monitor application and database logs for unusual activities, such as unauthorized access attempts or unexpected data modifications in the Bills of Material module.
Impact:
- Data Breach: Unauthorized read access allows attackers to exfiltrate sensitive manufacturing data, including Bills of Material, routing information, and critical business intelligence.
- Data Integrity Loss: Attackers can create, modify, or delete critical BOM data, leading to incorrect product structures, production errors, and supply chain disruptions.
- Business Disruption: Corrupted or deleted data can halt manufacturing operations, resulting in significant financial losses and reputational damage.
- Compliance Violations: Depending on the industry, a breach of sensitive data may lead to regulatory fines and legal action.
- Lateral Movement: Compromised access to the Bills of Material module could be used as a stepping stone to pivot to other critical modules within the Oracle E-Business Suite.
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Sources:
Reported By: nvd.nist.gov
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