CVE-2026-39889 PraisonAI has Unauthenticated SSE Event Stream Exposes All Agent Activity in A2U Server

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the A2U Agent-to-User event stream server in PraisonAI exposes all agent activity without authentication. The createa2uroutes function registers the following endpoints with NO authentication checks: /a2u/info, /a2u/subscribe,...

CVE-2026-34953

PraisonAI (OAuthManager.validate_token) vulnerability: before v4.5.97, validate_token() returns True for any token not present in the empty internal store, causing any Bearer token on MCP HTTP requests to be treated as authenticated and granting full access to tools and agent capabilities. This i...