CVE-2026-40148— PraisonAI Affected by Decompression Bomb DoS via Recipe Bundle Extraction Without Size Limits
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I. Basic Information for CVE-2026-40148
Vulnerability Information
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Vulnerability Title
PraisonAI Affected by Decompression Bomb DoS via Recipe Bundle Extraction Without Size Limits
Source: NVD (National Vulnerability Database)
Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to 4.5.128, the _safe_extractall() function in PraisonAI's recipe registry validates archive members against path traversal attacks but performs no checks on individual member sizes, cumulative extracted size, or member count before calling tar.extractall(). An attacker can publish a malicious recipe bundle containing highly compressible data (e.g., 10GB of zeros compressing to ~10MB) that exhausts the victim's disk when pulled via LocalRegistry.pull() or HttpRegistry.pull(). 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:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
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_safe_extractall函数未检查归档成员大小、累计大小或数量，可能导致攻击者通过恶意压缩包耗尽受害者磁盘空间。
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-2026-40148
| # | 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-2026-40115 | 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-409
- CVE-2026-27460
Tandoor Recipes Affected by Denial of Service via Recipe Imp - CVE-2026-39373
JWCrypto: JWE ZIP decompression bomb - CVE-2026-3114
Zip Bomb Denial of Service via Unrestricted Archive Decompre - CVE-2026-32044
OpenClaw < 2026.3.2 - Tar Archive Safety Bypass in Skills In - CVE-2026-2575
Keycloak: keycloak: denial of service due to excessive samlr
V. Comments for CVE-2026-40148
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