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.
PraisonAI 是一个多智能体团队系统。在 4.6.59 版本之前，默认的 UI 主机应用暴露了 接口，该接口未强制要求身份验证，并且接受调用方控制的 和 参数，这些参数会被传递给 StdioMCPClient 以启动本地进程。由于 UI 服务默认绑定到 ，任何能够访问该端点的未认证客户端都可以以 UI 服务账户的身份执行命令，即使后续的 MCP 握手失败也不例外。该漏洞已在 4.6.59 版本中修复。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1204.002 · Malicious File
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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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MervinPraison | PraisonAI | < 4.6.59 | - |
|
II. Public POCs for CVE-2026-57124
| # | POC Description | Source Link | Shenlong Link |
|---|
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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)
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🔗 Release PraisonAI v4.6.59 · MervinPraison/PraisonAI · GitHub x_refsource_MISC
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
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CVE-2026-57145
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CVE-2026-57132
PraisonAI: PRAISONAI_CALL_AUTH=disabled environment variable -
CVE-2026-57131
praisonai: Jobs API exposes agent-execution endpoints with n -
CVE-2026-57122
PraisonAI: Webhook signature verification skipped (fail-open -
CVE-2026-57127
praisonai: recipe serve auth middleware silently disables it
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CVE-2026-57122
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praisonai: recipe serve auth middleware silently disables it
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