High advisory for Crawl4AI

Advisory overview

Crawl4AI before 0.9.5 contains a denial of service vulnerability in the Docker API server where _clamp_untrusted() fails to cap the delay_before_return_html, mean_delay, and max_range fields of untrusted CrawlerRunConfig bodies. Unauthenticated attackers can send huge values to /crawl or /crawl/stream to hold browser pages or stall the rate limiter, exhausting the page pool and blocking other crawls.

Related references

• https://github.com/unclecode/crawl4ai/security/advisories/GHSA-rhjm-7hj7-75fx
• https://www.vulncheck.com/advisories/crawl4ai-before-0.9.5-denial-of-service-via-unbounded-crawlerrunconfig-delay-fields