GHSA-6h9p-93hq-q7h6: PraisonAI: SpiderTools redirect-target SSRF protection bypass

SpiderTools.scrape_page() validates the initial URL and rejects direct loopback, private, link-local, metadata, and internal hostnames. It then calls requests.Session.get() without disabling automatic redirects or validating redirect Location targets.

Requests follows redirects by default for GET requests. A safe-looking public URL can therefore pass _validate_url(), redirect to a blocked target such as 127.0.0.1 or 169.254.169.254, and have the redirected response body parsed and returned by scrape_page().

The same sink is used by extract_links(), crawl(), and extract_text() through their calls to scrape_page().