As long as scripting or programming still readable, there's no program that 100% safe.
The binary ones is reversible, let alone the source-code.
| Version | Supported |
|---|---|
| ≥ 4.0 | ☑️ |
| < 4.0 | ❎ |
Please open the discussion first to discuss mitigating exploitable vulnerabilities or bugs in shell-scripts or otherwise.