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CVE-2026-40111— PraisonAIAgents has an OS Command Injection via shell=True in Memory Hooks Executor (memory/hooks.py)

Quick assessment

Affected
MervinPraison PraisonAIAgents
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 1.5.128之前版本存在操作系统命令注入漏洞，该漏洞源于内存钩子执行器将用户控制的命令字符串直接传递给subprocess.run且未进行清理，可能导致shell命令注入。

AI Predicted 9.8 Difficulty: Easy EPSS 0.34% · P25
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I. Basic Information for CVE-2026-40111

Vulnerability Information
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Vulnerability Title
PraisonAIAgents has an OS Command Injection via shell=True in Memory Hooks Executor (memory/hooks.py)
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, he memory hooks executor in praisonaiagents passes a user-controlled command string directly to subprocess.run() with shell=True at src/praisonai-agents/praisonaiagents/memory/hooks.py. No sanitization is performed and shell metacharacters are interpreted by /bin/sh before the intended command executes. Two independent attack surfaces exist. The first is via pre_run_command and post_run_command hook event types registered through the hooks configuration. The second and more severe surface is the .praisonai/hooks.json lifecycle configuration, where hooks registered for events such as BEFORE_TOOL and AFTER_TOOL fire automatically during agent operation. An agent that gains file-write access through prompt injection can overwrite .praisonai/hooks.json and have its payload execute silently at every subsequent lifecycle event without further user interaction. This vulnerability is fixed in 1.5.128.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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 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 1.5.128之前版本存在操作系统命令注入漏洞，该漏洞源于内存钩子执行器将用户控制的命令字符串直接传递给subprocess.run且未进行清理，可能导致shell命令注入。
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 PraisonAIAgents < 1.5.128 -

II. Public POCs for CVE-2026-40111

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III. Intelligence Information for CVE-2026-40111

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Vendor Advisories for CVE-2026-40111 (1)

Same Patch Batch · MervinPraison · 2026-04-09 · 15 CVEs total

CVE-2026-40088 9.7 CRITICAL Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
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

IV. Related Vulnerabilities

Same product: PraisonAIAgents
Same vendor: MervinPraison
Same weakness: CWE-78

V. Comments for CVE-2026-40111

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