Fixing Repopilot Self‑Hosted PR Agent: 18% Fewer Node.js Vulnerabilities

Описание и применение

Репопилот не обнаруживал уязвимости в Node.js, поэтому автор создал собственный сервис, который обрабатывает вебхуки PR и ищет несанкционированный ввод и SQL‑инъекции, снизив их на 18 %.

Задача

Repopilot’s default self‑hosted PR agent lacked deep, contextual security checks for a Node.js codebase, missing untrusted input validation and SQL injection patterns.

Результат

By extending Repopilot with a custom Node.js security agent that listens to PR events and applies targeted static analysis, the team cut common Node.js vulnerabilities by 18% before code merged.

Рабочий процесс

• Configure Repopilot to send pull_request webhooks to a custom endpoint.
• Implement a Node.js Express service (SecurityAgentService) to receive and verify webhook signatures.
• Parse the PR event payload and fetch the diff URL.
• Run a static analysis pipeline that identifies untrusted input usage and SQL injection patterns.
• Return findings to the PR as comments or status checks.
• Iterate and refine rules based on findings to maintain low vulnerability count.

Доказательства

We managed to reduce common vulnerabilities by 18% in our internal dev cycle.

Источник

Repopilot’s default setup was good for syntax issues but not for untrusted input usage.

Источник