CVE-2025-62402
📋 TL;DR
This vulnerability allows authenticated API users to execute arbitrary Dag code in the context of the api-server when deployed in environments where Dag files are accessible. It affects Apache Airflow deployments with exposed API endpoints and accessible Dag files. The CVSS 5.4 score indicates moderate severity with authentication required.
💻 Affected Systems
- Apache Airflow
📦 What is this software?
Airflow by Apache
⚠️ Risk & Real-World Impact
Worst Case
Full compromise of the api-server allowing execution of arbitrary code, potential data exfiltration, and lateral movement within the environment.
Likely Case
Unauthorized Dag execution leading to workflow manipulation, data integrity issues, and potential privilege escalation within Airflow.
If Mitigated
Limited impact due to proper authentication controls, network segmentation, and restricted Dag file access.
🎯 Exploit Status
Requires authenticated API access and knowledge of the environment's Dag file structure. References suggest detailed technical discussion but no public exploit code.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Apache Airflow security advisories for specific patched versions
Vendor Advisory: https://lists.apache.org/thread/vbzxnxn031wb998hsd7vqnvh4z8nx6rs
Restart Required: No
Instructions:
1. Review Apache Airflow security advisory. 2. Upgrade to patched version. 3. Verify API endpoint security. 4. Test Dag execution functionality.
🔧 Temporary Workarounds
Restrict API Access
allLimit access to /api/v2/dagReports endpoint to trusted users only using network controls or authentication middleware.
# Configure firewall rules to restrict API access
# Implement additional authentication/authorization layers
Secure Dag File Access
allEnsure Dag files are not accessible to the api-server process or implement strict file permission controls.
# chmod 600 dag_files/
# Set appropriate filesystem permissions
# Use separate user accounts for api-server and Dag storage
🧯 If You Can't Patch
- Implement strict network segmentation to isolate API endpoints from untrusted networks
- Enforce strong authentication and authorization controls for all API users
🔍 How to Verify
Check if Vulnerable:
Check if your Apache Airflow deployment has the /api/v2/dagReports endpoint accessible and Dag files available to the api-server process.Check Version:
airflow versionVerify Fix Applied:
After patching, verify that authenticated users cannot execute arbitrary Dag code through the API endpoint.📡 Detection & Monitoring
Log Indicators:
- Unusual Dag execution patterns via API
- Multiple failed authentication attempts to /api/v2/dagReports
- Unexpected workflow executions
Network Indicators:
- Unusual traffic patterns to API endpoints
- Suspicious API calls to dagReports endpoint
SIEM Query:
source="airflow" AND (uri="/api/v2/dagReports" OR dag_execution_via_api=true)