CVE-2026-40288— PraisonAI: Critical RCE via `type: job` workflow YAML
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 4.5.139之前版本和praisonaiagents 1.5.140之前版本存在代码注入漏洞，该漏洞源于工作流引擎处理不受信任的YAML文件，可能导致任意命令和代码执行。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1059.004 · Unix Shell T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-40288
Vulnerability Information
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Vulnerability Title
PraisonAI: Critical RCE via `type: job` workflow YAML
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the workflow engine is vulnerable to arbitrary command and code execution through untrusted YAML files. When praisonai workflow run <file.yaml> loads a YAML file with type: job, the JobWorkflowExecutor in job_workflow.py processes steps that support run: (shell commands via subprocess.run()), script: (inline Python via exec()), and python: (arbitrary Python script execution)—all without any validation, sandboxing, or user confirmation. The affected code paths include action_run() in workflow.py and _exec_shell(), _exec_inline_python(), and _exec_python_script() in job_workflow.py. An attacker who can supply or influence a workflow YAML file (particularly in CI pipelines, shared repositories, or multi-tenant deployment environments) can achieve full arbitrary command execution on the host system, compromising the machine and any accessible data or credentials. This issue has been fixed in versions 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents.
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
PraisonAI 代码注入漏洞
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 4.5.139之前版本和praisonaiagents 1.5.140之前版本存在代码注入漏洞，该漏洞源于工作流引擎处理不受信任的YAML文件，可能导致任意命令和代码执行。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MervinPraison | PraisonAI | < 4.5.139 | - |
|
| MervinPraison | praisonaiagents | < 1.5.140 | - |
|
II. Public POCs for CVE-2026-40288
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-40288 (1)
Same Patch Batch · MervinPraison · 2026-04-14 · 5 CVEs total
| 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-2026-40287 | 8.4 HIGH | PraisonAI has RCE via Automatic tools.py Import |
| CVE-2026-40315 | PraisonAI: SQLiteConversationStore didn't validate table_prefix when constructing SQL quer |
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