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CVE-2026-57124— PraisonAI UI MCP connect endpoint allows unauthenticated local command execution

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.

Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 4.6.59之前版本存在安全漏洞，该漏洞源于默认UI宿主应用暴露POST /api/mcp/connect接口且未强制身份验证，并接受调用者控制的command和args参数值传递给StdioMCPClient启动本地进程，可能导致未经验证的攻击者以UI服务账户执行命令。

CVSS 9.8 · Critical EPSS 1.03% · P64

Affected Version Matrix 1

VendorProduct Version RangeStatus
MervinPraison PraisonAI < 4.6.59 affected
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I. Basic Information for CVE-2026-57124

Vulnerability Information
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Vulnerability Title
PraisonAI UI MCP connect endpoint allows unauthenticated local command execution
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to 4.6.59, the default UI host applications expose POST /api/mcp/connect without mandatory authentication and accept caller-controlled command and args values that PraisonAIUI passes to StdioMCPClient to start a local process. Because the UI commands bind to 0.0.0.0 by default, a reachable unauthenticated client can execute commands as the UI service account even when the MCP handshake later fails. This vulnerability is fixed in 4.6.59.
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
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Mervin Praison PraisonAI 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 4.6.59之前版本存在安全漏洞，该漏洞源于默认UI宿主应用暴露POST /api/mcp/connect接口且未强制身份验证，并接受调用者控制的command和args参数值传递给StdioMCPClient启动本地进程，可能导致未经验证的攻击者以UI服务账户执行命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MervinPraison PraisonAI < 4.6.59 -

II. Public POCs for CVE-2026-57124

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III. Intelligence Information for CVE-2026-57124

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Patches & Fixes for CVE-2026-57124 (1)

Vendor Advisories for CVE-2026-57124 (1)

Vendor Pages for CVE-2026-57124 (1)

Same Patch Batch · MervinPraison · 2026-09-14 · 16 CVEs total

CVE-2026-57123 9.8 CRITICAL PraisonAI: MCP SSE transport binds 0.0.0.0 with no authentication and no Origin validation
CVE-2026-57125 9.8 CRITICAL PraisonAI: Unauthenticated RCE via Jobs API + Approval Bypass
CVE-2026-57127 9.8 CRITICAL praisonai: recipe serve auth middleware silently disables itself when no secret is set
CVE-2026-57131 9.8 CRITICAL praisonai: Jobs API exposes agent-execution endpoints with no authentication
CVE-2026-57145 9.1 CRITICAL PraisonAI: Arbitrary File Read/Write via `multiedit` Tool Without Path Validation
CVE-2026-57122 8.6 HIGH PraisonAI: Webhook signature verification skipped (fail-open) when secret unset, allowing
CVE-2026-57126 8.5 HIGH praisonaiagents: SSRF guard validates literal IPs only and never resolves DNS
CVE-2026-57132 8.2 HIGH PraisonAI: PRAISONAI_CALL_AUTH=disabled environment variable unconditionally disables auth
CVE-2026-57130 8.1 HIGH PraisonAI: IMAP Command Injection via Unsanitized Email Search Parameters
CVE-2026-57119 7.5 HIGH PraisonAI: Unauthenticated Local File Inclusion via agent_file path in the Jobs API
CVE-2026-57129 7.5 HIGH PraisonAI: Arbitrary File Read via `@file:` Mention Path Traversal
CVE-2026-56839 7.3 HIGH PraisonAI Code agent tools fail open without a workspace boundary
CVE-2026-57115 6.5 MEDIUM PraisonAI: SpiderTools redirect-target SSRF protection bypass
CVE-2026-57120 6.5 MEDIUM PraisonAI: execute_code sandbox bypass: str.format C-level attribute access reads every bl
CVE-2026-57128 4.3 MEDIUM PraisonAI: Unauthenticated Event Injection via SSE `/publish` Endpoint

IV. Related Vulnerabilities

Same product: PraisonAI
Same vendor: MervinPraison
Same weakness: CWE-78