CVE-2026-40151— PraisonAI Affected by Unauthenticated Information Disclosure of Agent Instructions via /api/agents in AgentOS
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I. Basic Information for CVE-2026-40151
Vulnerability Information
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Vulnerability Title
PraisonAI Affected by Unauthenticated Information Disclosure of Agent Instructions via /api/agents in AgentOS
Source: NVD (National Vulnerability Database)
Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to 4.5.128, the AgentOS deployment platform exposes a GET /api/agents endpoint that returns agent names, roles, and the first 100 characters of agent system instructions to any unauthenticated caller. The AgentOS FastAPI application has no authentication middleware, no API key validation, and defaults to CORS allow_origins=["*"] with host="0.0.0.0", making every deployment network-accessible and queryable from any origin by default. This vulnerability is fixed in 4.5.128.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
PraisonAI 信息泄露漏洞
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 4.5.128之前版本存在信息泄露漏洞，该漏洞源于AgentOS部署平台未实施身份验证且默认CORS配置允许任意来源访问，可能导致未经身份验证的调用者获取代理信息。
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 | < 4.5.128 | - |
II. Public POCs for CVE-2026-40151
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|---|
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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-2026-40152 | 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
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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
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Same weakness: CWE-200
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