OpenAIfeature
June 22, 2026·Source

Codex Security Plugin

A plugin for OpenAI's Codex coding tool that scans your code for security vulnerabilities and helps fix them.

Codex Security Plugin announcement image
  • Install it inside Codex (desktop app or command line), point it at a project folder, and it runs a security scan of that code
  • It finds vulnerabilities, checks whether each one is real, and can apply fixes, aiming to stop issues before they reach production
  • Launched alongside the full release of GPT-5.5-Cyber, OpenAI's security-tuned model, which stays limited to vetted defenders
  • Part of OpenAI's Daybreak cybersecurity program

Best for

finding and fixing security holes in code you are already working on, without leaving Codex

When to use it

you want to scan a codebase for vulnerabilities before shipping, from your editor or the command line

Who benefits

developers and security teams who use OpenAI's Codex

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