CVE-2026-57139: Mervinpraison Praisonai

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp() in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest() without authentication or authorization. Any network client that can reach the port can call tools/list, tools/call, resources/read, or prompts/get, causing registered handlers to run with server-side credentials and process privileges or disclose registered data. An initial remediation was released in version 1.7.2.

Affected products

• Mervinpraison Praisonai: from 1.5.0, before 1.7.2 (fixed in 1.7.2)

Published 2026-09-15. Last modified 2026-09-17.