CVE-2024-7297
📋 TL;DR
Langflow versions before 1.0.13 contain a privilege escalation vulnerability where remote attackers with low privileges can gain super admin access by sending mass assignment requests to the '/api/v1/users' endpoint. This affects all Langflow deployments running vulnerable versions, allowing unauthorized administrative control.
💻 Affected Systems
- Langflow
📦 What is this software?
Langflow by Langflow
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains full super admin privileges, enabling complete system compromise, data theft, service disruption, and lateral movement within the environment.
Likely Case
Attackers elevate their privileges to super admin, allowing them to modify configurations, access sensitive data, and potentially deploy backdoors.
If Mitigated
With proper network segmentation and access controls, impact is limited to the Langflow instance itself, preventing lateral movement to other systems.
🎯 Exploit Status
Exploitation requires low-privileged credentials but is straightforward via API manipulation. No public exploit code has been released.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.13
Vendor Advisory: https://github.com/langflow-ai/langflow/releases/tag/v1.0.13
Restart Required: Yes
Instructions:
1. Backup your Langflow configuration and data. 2. Update Langflow to version 1.0.13 using your package manager or deployment method. 3. Restart the Langflow service. 4. Verify the update was successful.
🔧 Temporary Workarounds
API Endpoint Restriction
allBlock or restrict access to the vulnerable '/api/v1/users' endpoint using web application firewall or reverse proxy rules.
# Example nginx location block
location /api/v1/users { deny all; }
Network Segmentation
linuxRestrict network access to Langflow administration interfaces to trusted IP addresses only.
# Example iptables rule
iptables -A INPUT -p tcp --dport [langflow-port] -s [trusted-ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [langflow-port] -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the Langflow API endpoints.
- Monitor for suspicious API requests to '/api/v1/users' endpoint and implement alerting for privilege escalation attempts.
🔍 How to Verify
Check if Vulnerable:
Check your Langflow version. If it's below 1.0.13, you are vulnerable. Test by attempting to modify user privileges via API (in controlled environment only).Check Version:
langflow --versionVerify Fix Applied:
After updating to 1.0.13, verify the version and test that mass assignment requests to '/api/v1/users' no longer allow privilege escalation.📡 Detection & Monitoring
Log Indicators:
- Unusual POST/PUT requests to '/api/v1/users' endpoint
- User privilege changes from low to admin level
- Multiple failed authentication attempts followed by successful privilege escalation
Network Indicators:
- HTTP requests to '/api/v1/users' with privilege modification parameters
- Unusual API traffic patterns from unexpected sources
SIEM Query:
source="langflow.log" AND (uri_path="/api/v1/users" AND (http_method="POST" OR http_method="PUT") AND (user_role_changed OR privilege_escalation))