CVE-2025-27138
📋 TL;DR
This vulnerability allows attackers to bypass authentication in DataEase, potentially gaining unauthorized access to sensitive business intelligence data and visualization tools. All organizations running DataEase versions before 2.10.6 are affected. The flaw exists in the TokenFilter class's authentication mechanism.
💻 Affected Systems
- DataEase
📦 What is this software?
Dataease by Dataease
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access, modify, or delete all business intelligence data, execute arbitrary code, and pivot to other systems.
Likely Case
Unauthorized access to sensitive business data, data exfiltration, and potential privilege escalation within the DataEase environment.
If Mitigated
Limited impact if strong network segmentation, monitoring, and additional authentication layers are in place.
🎯 Exploit Status
The advisory suggests authentication bypass is possible without credentials. No public exploit code has been identified yet.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.10.6
Vendor Advisory: https://github.com/dataease/dataease/security/advisories/GHSA-533g-whf8-q637
Restart Required: Yes
Instructions:
1. Backup your DataEase configuration and data. 2. Stop the DataEase service. 3. Upgrade to version 2.10.6 using your package manager or manual installation. 4. Restart the DataEase service. 5. Verify the upgrade was successful.
🧯 If You Can't Patch
- Isolate DataEase instances behind strict network segmentation and firewall rules.
- Implement additional authentication layers such as VPN or reverse proxy with authentication.
🔍 How to Verify
Check if Vulnerable:
Check the DataEase version via web interface or configuration files. If version is below 2.10.6, the system is vulnerable.Check Version:
Check DataEase web interface or configuration files for version information.Verify Fix Applied:
Confirm the version is 2.10.6 or higher and test authentication mechanisms work properly.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication patterns
- Access from unexpected IP addresses
- Failed authentication attempts followed by successful access
Network Indicators:
- Unauthenticated requests to DataEase endpoints
- Traffic patterns suggesting data exfiltration
SIEM Query:
source="dataease" AND (event_type="auth_failure" OR event_type="auth_success") | stats count by src_ip, user