critical9.8
CVE-2026-57123
PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation; bundled SecurityConfig is never wired in
Impact
PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.59, ToolsMCPServer.run_sse and launch_tools_mcp_server bind to 0.0.0.0 and create /sse and /messages/ routes without invoking the available SecurityConfig authentication, origin-validation, or DNS-rebinding controls. Any reachable client can list and invoke registered tools, and a browser can target a local instance through DNS rebinding, with impact determined by the registered file, shell, and code-execution tools. This vulnerability is fixed in praisonaiagents 1.6.59.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | praisonaiagents | < 1.6.59 | 1.6.59 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-x227-pf99-vffg
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-x227-pf99-vffg
- https://github.com/MervinPraison/PraisonAI/commit/2adfe7e8323f6deec66925cf15a885b6238895e9
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59