CVE-2026-57573: Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check on the non-streaming…

PriorityP355high8.6CVSS 3.1

AVNACLPRNUINSCCHINAN

EPSS

0.45%

37.3th percentile

Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check on the non-streaming /crawl path but not on the streaming path. handle_stream_crawl_request passed seed URLs straight to the crawler with no destination validation, allowing a remote unauthenticated client to call POST /crawl/stream or POST /crawl with crawler_config.stream=true with a URL pointing at an internal, private, or link-local address; the server fetched it and streamed the response body back. This issue is fixed in version 0.9.0.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
kidocode	crawl4ai	< 0.9.0	0.9.0
unclecode	crawl4ai	< 0.9.0	0.9.0

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