CVE-2026-40088— Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in praisonai
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I. Basic Information for CVE-2026-40088
Vulnerability Information
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Vulnerability Title
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in praisonai
Source: NVD (National Vulnerability Database)
Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to 4.5.121, the execute_command function and workflow shell execution are exposed to user-controlled input via agent workflows, YAML definitions, and LLM-generated tool calls, allowing attackers to inject arbitrary shell commands through shell metacharacters. This vulnerability is fixed in 4.5.121.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
PraisonAI 操作系统命令注入漏洞
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 4.5.121之前版本存在操作系统命令注入漏洞，该漏洞源于execute_command函数和工作流shell执行暴露给用户控制的输入，可能导致攻击者通过shell元字符注入任意shell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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MervinPraison | PraisonAI | < 4.5.121 | - |
II. Public POCs for CVE-2026-40088
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8201 chars
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III. Intelligence Information for CVE-2026-40088
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Same Patch Batch · MervinPraison · 2026-04-09 · 15 CVEs total
| CVE-2026-40154 | 9.3 CRITICAL | PraisonAI Affected by Untrusted Remote Template Code Execution |
| CVE-2026-40113 | 8.4 HIGH | PraisonAI has an Argument Injection into Cloud Run Environment Variables via Unsanitized C |
| CVE-2026-40149 | 7.9 HIGH | PraisonAI has an Unauthenticated Allow-List Manipulation Bypasses Agent Tool Approval Safe |
| CVE-2026-40150 | 7.7 HIGH | PraisonAIAgents has SSRF and Local File Read via Unvalidated URLs in web_crawl Tool |
| CVE-2026-40116 | 7.5 HIGH | PraisonAI's Unauthenticated WebSocket Endpoint Proxies to Paid OpenAI Realtime API Without |
| CVE-2026-40153 | 7.4 HIGH | PraisonAIAgents Affected by Environment Variable Secret Exfiltration via os.path.expandvar |
| CVE-2026-40114 | 7.2 HIGH | PraisonAI has Server-Side Request Forgery via Unvalidated webhook_url in Jobs API |
| CVE-2026-40148 | 6.5 MEDIUM | PraisonAI Affected by Decompression Bomb DoS via Recipe Bundle Extraction Without Size Lim |
| CVE-2026-40115 | 6.2 MEDIUM | PraisonAI has an Unrestricted Upload Size in WSGI Recipe Registry Server Enables Memory Ex |
| CVE-2026-40117 | 6.2 MEDIUM | PraisonAIAgents Affected by Arbitrary File Read via read_skill_file Missing Workspace Boun |
| CVE-2026-40112 | 5.4 MEDIUM | PraisonAI has Stored XSS via Unsanitized Agent Output in HTML Rendering (nh3 Not a Require |
| CVE-2026-40151 | 5.3 MEDIUM | PraisonAI Affected by Unauthenticated Information Disclosure of Agent Instructions via /ap |
| CVE-2026-40152 | 5.3 MEDIUM | PraisonAIAgents has a Path Traversal via Unvalidated Glob Pattern in list_files Bypasses W |
| CVE-2026-40111 | PraisonAIAgents has an OS Command Injection via shell=True in Memory Hooks Executor (memor |
IV. Related Vulnerabilities
Same product: PraisonAI
- CVE-2026-44340
PraisonAI: Symlink-extraction bypass of `_safe_extractall` w - CVE-2026-44339
PraisonAI has unsafe tool resolution in `ToolExecutionMixin. - CVE-2026-44338
PraisonAI ships and generates a legacy API server with authe - CVE-2026-44337
PraisonAI knowledge-store backends interpolate unvalidated c - CVE-2026-44336
PraisonAI MCP `tools/call` path-traversal and RCE via Python
Same vendor: MervinPraison
- CVE-2026-44340
PraisonAI: Symlink-extraction bypass of `_safe_extractall` w - CVE-2026-44339
PraisonAI has unsafe tool resolution in `ToolExecutionMixin. - CVE-2026-44338
PraisonAI ships and generates a legacy API server with authe - CVE-2026-44337
PraisonAI knowledge-store backends interpolate unvalidated c - CVE-2026-44336
PraisonAI MCP `tools/call` path-traversal and RCE via Python
Same weakness: CWE-78
- CVE-2026-42454
Termix: OS Command Injection in Docker Container Management - CVE-2026-44656
Vim: OS Command Injection via 'path' completion - CVE-2026-42307
Vim: OS Command Injection in netrw - CVE-2026-41497
Incomplete fix for CVE-2026-34935: Command Injection in Merv - CVE-2022-50994
DrayTek Vigor 2960 < 1.5.1.4 OS Command Injection via mainfu
V. Comments for CVE-2026-40088
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