CVE-2026-57139 PUBLISHED

PraisonAI MCPServer exposes unauthenticated HTTP tools/call

Assigner: GitHub_M
Reserved: 24.06.2026 Published: 15.09.2026 Updated: 15.09.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Product Status

Vendor MervinPraison
Product PraisonAI
Versions
  • Version >= 1.5.0, < 1.7.2 is affected

References

Problem Types

  • CWE-306: Missing Authentication for Critical Function CWE
  • CWE-862: Missing Authorization CWE
  • CWE-1188: Insecure Default Initialization of Resource CWE