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CVE-2026-57138— PraisonAI codeMode sandbox escape via Function constructor

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 1.4.0版本至1.7.2之前版本存在安全漏洞，该漏洞源于codeMode在with(sandbox)中使用new Function()执行不可信JavaScript，仅依赖源代码黑名单及被遮蔽的process和require属性，代码可通过({}).constructor.constructor恢复真正的Function构造函数并获

CVSS 9.9 · Critical EPSS 0.73% · P54

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
MervinPraison PraisonAI >= 1.4.0, < 1.7.2 affected
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I. Basic Information for CVE-2026-57138

Vulnerability Information
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Vulnerability Title
PraisonAI codeMode sandbox escape via Function constructor
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAI is a multi-agent teams system. From 1.4.0 until 1.7.2, codeMode in src/praisonai-ts/src/tools/builtins/code-mode.ts executes untrusted JavaScript with new Function() inside with(sandbox) and relies on a small source-code blocklist plus shadowed process and require properties. Code can use ({}).constructor.constructor to recover the real Function constructor, obtain process and process.mainModule.require, and reach host filesystem and subprocess APIs despite the advertised sandbox. Attackers who control codeMode input can read secrets, modify files, execute commands, or exhaust the host process. This issue is fixed in version 1.7.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
Mervin Praison PraisonAI 输入验证错误漏洞
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 1.4.0版本至1.7.2之前版本存在安全漏洞，该漏洞源于codeMode在with(sandbox)中使用new Function()执行不可信JavaScript，仅依赖源代码黑名单及被遮蔽的process和require属性，代码可通过({}).constructor.constructor恢复真正的Function构造函数并获
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 >= 1.4.0, < 1.7.2 -

II. Public POCs for CVE-2026-57138

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III. Intelligence Information for CVE-2026-57138

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Patches & Fixes for CVE-2026-57138 (1)

Vendor Advisories for CVE-2026-57138 (1)

Vendor Pages for CVE-2026-57138 (1)

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

CVE-2026-57139 9.8 CRITICAL PraisonAI MCPServer exposes unauthenticated HTTP tools/call
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-184