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CVE-2026-40287— PraisonAI has RCE via Automatic tools.py Import

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Mervin Praison个人开发者的一个低代码多智能体协作框架。 PraisonAI 4.5.138及之前版本存在安全漏洞，该漏洞源于自动且未清理地导入当前工作目录中的tools.py文件，可能导致任意代码执行。

CVSS 8.4 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-40287

Vulnerability Information
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Vulnerability Title
PraisonAI has RCE via Automatic tools.py Import
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAI is a multi-agent teams system. Versions 4.5.138 and below are vulnerable to arbitrary code execution through automatic, unsanitized import of a tools.py file from the current working directory. Components including call.py (import_tools_from_file()), tool_resolver.py (_load_local_tools()), and CLI tool-loading paths blindly import ./tools.py at startup without any validation, sandboxing, or user confirmation. An attacker who can place a malicious tools.py in the directory where PraisonAI is launched (such as through a shared project, cloned repository, or writable workspace) achieves immediate arbitrary Python code execution in the host environment. This compromises the full PraisonAI process, the host system, and any connected data or credentials. This issue has been fixed in version 4.5.139.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
PraisonAI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PraisonAI是Mervin Praison个人开发者的一个低代码多智能体协作框架。 PraisonAI 4.5.138及之前版本存在安全漏洞，该漏洞源于自动且未清理地导入当前工作目录中的tools.py文件，可能导致任意代码执行。
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 < 4.5.139 -
MervinPraison praisonaiagents < 1.5.140 -

II. Public POCs for CVE-2026-40287

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III. Intelligence Information for CVE-2026-40287

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Same Patch Batch · MervinPraison · 2026-04-14 · 5 CVEs total

CVE-2026-40288 9.8 CRITICAL PraisonAI: Critical RCE via `type: job` workflow YAML
CVE-2026-40313 9.1 CRITICAL PraisonAI: ArtiPACKED Vulnerability via GitHub Actions Credential Persistence
CVE-2026-40289 9.1 CRITICAL PraisonAI Browser Server allows unauthenticated WebSocket clients to hijack connected exte
CVE-2026-40315 PraisonAI: SQLiteConversationStore didn't validate table_prefix when constructing SQL quer

IV. Related Vulnerabilities

Same product: PraisonAI
Same vendor: MervinPraison
Same weakness: CWE-94

V. Comments for CVE-2026-40287

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