CVE-2026-2111
📋 TL;DR
JeecgBoot versions up to 3.9.0 contain a path traversal vulnerability in the Retrieval-Augmented Generation Module's /airag/knowledge/doc/edit endpoint. Attackers can manipulate the filePath parameter to access arbitrary files on the server. Organizations using vulnerable JeecgBoot installations are affected.
💻 Affected Systems
- JeecgBoot
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise through reading sensitive files like configuration files, credentials, or executing arbitrary code if combined with other vulnerabilities.
Likely Case
Unauthorized access to sensitive files containing configuration data, user information, or proprietary business data.
If Mitigated
Limited impact if proper file system permissions restrict access to sensitive areas and web server runs with minimal privileges.
🎯 Exploit Status
Exploit details are publicly available and the vulnerability requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to any version beyond 3.9.0 if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject filePath parameters containing directory traversal sequences like '../' or absolute paths.
Web Application Firewall Rule
allConfigure WAF to block requests containing path traversal patterns in the filePath parameter.
🧯 If You Can't Patch
- Restrict network access to the vulnerable endpoint using firewall rules or network segmentation.
- Run the JeecgBoot application with minimal file system permissions to limit potential damage from successful exploitation.
🔍 How to Verify
Check if Vulnerable:
Test by sending a request to /airag/knowledge/doc/edit with filePath parameter containing '../etc/passwd' or similar traversal sequences and check if server returns sensitive file contents.Check Version:
Check JeecgBoot version in application configuration files or admin interface.Verify Fix Applied:
Retest with the same traversal attempts after implementing fixes; requests should be rejected or return error responses.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /airag/knowledge/doc/edit with filePath parameter containing '../', '..\', or absolute paths
Network Indicators:
- Unusual file access patterns from web application to system directories
SIEM Query:
web.url:*airag/knowledge/doc/edit* AND (web.param.filePath:*../* OR web.param.filePath:*..\*)