CVE-2026-21972
📋 TL;DR
This vulnerability in Oracle Configurator allows unauthenticated attackers with network access via HTTP to read sensitive data from the application. It affects Oracle E-Business Suite versions 12.2.3 through 12.2.15. The attack requires no user interaction and can be performed remotely.
💻 Affected Systems
- Oracle E-Business Suite - Oracle Configurator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete exposure of all Oracle Configurator accessible data including sensitive business configuration information, pricing data, and customer-specific configuration rules.
Likely Case
Partial data leakage of Oracle Configurator information, potentially exposing business logic, configuration rules, and some sensitive data fields.
If Mitigated
No data exposure if proper network segmentation and access controls prevent unauthenticated HTTP access to the vulnerable component.
🎯 Exploit Status
The vulnerability is described as 'easily exploitable' and requires no authentication, making it straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patches from Oracle Critical Patch Update Advisory - January 2026
Vendor Advisory: https://www.oracle.com/security-alerts/cpujan2026.html
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Oracle Support. 2. Apply the patch following Oracle's E-Business Suite patching procedures. 3. Restart affected services. 4. Verify the patch was applied successfully.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict network access to Oracle Configurator to only trusted IP addresses and networks
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
Web Application Firewall Rules
allImplement WAF rules to block suspicious requests to Oracle Configurator endpoints
🧯 If You Can't Patch
- Implement strict network access controls to limit HTTP access to Oracle Configurator only to authorized users and systems
- Deploy a web application firewall with rules specifically designed to detect and block exploitation attempts against Oracle Configurator
🔍 How to Verify
Check if Vulnerable:
Check Oracle E-Business Suite version and compare against affected versions 12.2.3-12.2.15. Review Oracle Configurator component version.Check Version:
Check Oracle E-Business Suite version using Oracle application utilities or query the database for version informationVerify Fix Applied:
Verify patch application through Oracle's patch management tools and confirm version is no longer in the vulnerable range.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to Oracle Configurator endpoints from unauthenticated sources
- Multiple failed authentication attempts followed by data access patterns
- Access to configuration data endpoints without proper session tokens
Network Indicators:
- HTTP traffic to Oracle Configurator from unexpected IP addresses
- Patterns of data extraction via HTTP requests
- Unusual volume of requests to configuration endpoints
SIEM Query:
source="oracle-ebs-logs" AND (uri CONTAINS "/configurator/" OR uri CONTAINS "/ui/") AND (src_ip NOT IN allowed_ips OR auth_status="failed")