PYSEC-2026-2924 PraisonAI: SSRF via Unvalidated api_base in passthrough() Fallback

Summary passthrough and apassthrough in praisonai accept a caller-controlled apibase parameter that is concatenated with endpoint and passed directly to httpx.Client.request when the litellm primary path raises AttributeError. No URL scheme validation, private IP filtering, or domain allowlist is...