Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.
The Crawl4AI Docker API endpoints accepted arbitrary URL schemes without an allow-list. An unauthenticated request with a file:// URL could read local files. Fixed in 0.8.0, which restricts accepted URL schemes. References: https://github.com/unclecode/crawl4ai/security/advisories/GHSA-vx9w-5cx4-9796 Remediation: Update to version 0.8.0 or later.
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