ToolsJuly 29, 2026via The Decoder
OpenAI open-sources Codex Security CLI to help developers find and fix vulnerabilities from the command line
Why it matters
OpenAI ships a practical developer tool that brings AI-powered code security into the CLI workflow. Direct competition with Anthropic's Claude Security signals the automation of application security is moving from lab to production.
Key signals
- Codex Security CLI is open-source
- Previously internal project called 'Aardvark'
- Already fixed 3,000+ critical security vulnerabilities
- Command-line interface for developers
- Direct competitor to Anthropic's Claude Security
- Targets automated vulnerability detection and patching
The hook
OpenAI open-sources Codex Security CLI — a command-line vulnerability scanner that's already patched 3,000+ critical flaws. Developers can adopt it today.
OpenAI has released Codex Security CLI, an open-source tool that automatically detects and fixes vulnerabilities in code repositories. Previously known internally as "Aardvark," the system has already helped fix more than 3,000 critical security flaws, according to OpenAI. It competes directly with …