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CVE-2026-57139— PraisonAI MCPServer exposes unauthenticated HTTP tools/call

Quick assessment

Affected
MervinPraison PraisonAI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PraisonAI 是一个多智能体（multi-agent）团队系统。在版本 1.5.0 至 1.7.2 中， 中的 在绑定端口时未限制主机地址，且将每个 HTTP POST 请求未经过身份认证或授权直接转发给 处理。任何能够访问该端口的网络客户端均可调用 、 、 或 ，导致已注册的处理器在服务器端凭据和进程权限下执行，或泄露已注册的数据。该问题已在 1.7.2 版本中通过初始修复措施得到解决。

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-57139

Vulnerability Information
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Vulnerability Title
PraisonAI MCPServer exposes unauthenticated HTTP tools/call
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MervinPraison PraisonAI >= 1.5.0, < 1.7.2 -

II. Public POCs for CVE-2026-57139

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III. Intelligence Information for CVE-2026-57139

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Patches & Fixes for CVE-2026-57139 (1)

Vendor Advisories for CVE-2026-57139 (1)

Vendor Pages for CVE-2026-57139 (1)

Same Patch Batch · MervinPraison · 2026-09-15 · 12 CVEs total

CVE-2026-57138 9.9 CRITICAL PraisonAI codeMode sandbox escape via Function constructor
CVE-2026-57141 9.8 CRITICAL PraisonAI: Remote Code Execution via Sandbox Escape in `codeMode` Tool
CVE-2026-57147 9.8 CRITICAL praisonai-platform: default JWT signing secret 'dev-secret-change-me' enables token forger
CVE-2026-57148 9.8 CRITICAL praisonai-platform 0.1.4 still boots on the hardcoded JWT secret dev-secret-change-me (def
CVE-2026-57140 9.4 CRITICAL PraisonAI AgentOS exposes unauthenticated agent listing and invocation
CVE-2026-57133 8.8 HIGH PraisonAI utility shell safe-command wrapper allowlist bypass via shell chaining
CVE-2026-57136 8.8 HIGH PraisonAI SandboxExecutor allowedCommands bypass via shell chaining
CVE-2026-57137 8.8 HIGH PraisonAI AgentLoop onToolCall approval runs after tool execution
CVE-2026-57112 8.3 HIGH PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes reg
CVE-2026-57134 8.2 HIGH PraisonAI MCPSecurity Basic/OAuth authentication policies accept invalid credentials witho
CVE-2026-57135 7.6 HIGH PraisonAI SandboxExecutor network-isolated mode does not block non-proxy-aware network cli

IV. Related Vulnerabilities

Same product: PraisonAI
Same vendor: MervinPraison
Same weakness: CWE-306

V. Comments for CVE-2026-57139

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