| Version | Supported |
|---|---|
| < 4.0 | :x: |
| 4.0.x | :x: |
| 4.1.x | :x |
| 5.0.x | :x: |
| 5.1.x | :white_check_mark: |
| 6.0.x | :white_check_mark: |
Contact the Apache Traffic Control Security Team and follow the guidelines on the Apache Software Foundation security page regarding vulnerability disclosure.