Create SECURITY.md

SECURITY.md

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+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 2.7.X   | :white_check_mark: |
+
+## Reporting a Vulnerability
+- Email: [email protected]
+- Telegram： [bretton97](https://t.me/bretton97)
+- or Github issues for not Fatal Vulnerability.