CVE-2026-40115— PraisonAI has an Unrestricted Upload Size in WSGI Recipe Registry Server Enables Memory Exhaustion DoS
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I. Basic Information for CVE-2026-40115
Vulnerability Information
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Vulnerability Title
PraisonAI has an Unrestricted Upload Size in WSGI Recipe Registry Server Enables Memory Exhaustion DoS
Source: NVD (National Vulnerability Database)
Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to 4.5.128, the WSGI-based recipe registry server (server.py) reads the entire HTTP request body into memory based on the client-supplied Content-Length header with no upper bound. Combined with authentication being disabled by default (no token configured), any local process can send arbitrarily large POST requests to exhaust server memory and cause a denial of service. The Starlette-based server (serve.py) has RequestSizeLimitMiddleware with a 10MB limit, but the WSGI server lacks any equivalent protection. This vulnerability is fixed in 4.5.128.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
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 4.5.128之前版本存在安全漏洞，该漏洞源于WSGI服务器读取HTTP请求体时未设置上限且默认禁用身份验证，可能导致本地进程发送任意大的POST请求耗尽服务器内存，造成拒绝服务。
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-2026-40115
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2026-40117 | 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
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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-770
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