Description
Crawl4AI from 0.8.7 through 0.9.5 contains a server-side request forgery vulnerability in the Docker API server that allows unauthenticated attackers to bypass destination checks via URL userinfo parsing differences. Attackers can set fetch_ssl_certificate=true with crafted userinfo URLs so SSLCertificate.from_url connects to internal hosts on port 443, probing reachability and leaking certificate details.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| unclecode | crawl4ai | 0.8.7 – ≤ 0.9.5 | — |
References
- https://github.com/unclecode/crawl4ai/pull/2304 patch issue-tracking
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/ssl_certificate.py technical-description
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/async_crawler_strategy.py technical-description
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/deploy/docker/utils.py technical-description
- VulnCheck Advisory: Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo third-party-advisory