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Critical · 9.8 CVE-2026-57139 EUVD-2026-78393GHSA-j4f3-55x4-r6q2

PraisonAI MCPServer exposes unauthenticated HTTP tools/call

Published Sep 15, 2026 · Updated Sep 17, 2026 · Assigned by GitHub_M

Description

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

VendorProductAffectedFixed
MervinPraison PraisonAI >= 1.5.0, < 1.7.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm praisonai >= 1.5.0, < 1.7.2 1.7.2 GHSA-j4f3-55x4-r6q2

References