Description (CNA)
PraisonAI before 4.6.78 exposes the MCP HTTP-stream transport without authentication by default: the CLI --api-key option defaults to None, and the server only enforces Authorization/Bearer checks when an API key is configured. When an operator runs 'praisonai mcp serve --transport http-stream' without an API key, an unauthenticated client (no Authorization header, and no Origin header, which is also permitted) can initialize a session, enumerate the available tools (tools/list), and invoke tools (tools/call). Additionally, the dispatcher forwards tool-call arguments to handlers without validating them against the advertised inputSchema. The server binds to 127.0.0.1 by default, so remote exploitation requires the operator to bind to a network-accessible address (e.g., --host 0.0.0.0).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| MervinPraison / PraisonAI | affected 0 before 4.6.78; unaffected 4.6.78 |
CWE
CWE-20
References
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-hc5v-gxvj-58wh
- https://www.vulncheck.com/advisories/praisonai-before-authentication-bypass-via-http-stream
ADP enrichment
No English description supplied.