CVE-2026-47393— PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default
Quick assessment
Affected
MervinPraison PraisonAI
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 4.6.40之前版本存在安全漏洞，该漏洞源于默认禁用验证的代码生成器，生成的Flask API服务器绑定到0.0.0.0，暴露/chat和/agents端点，处理用户提供的JSON输入且无需任何身份验证。
Possible ATT&CK Techniques 2 AI
T1498 · Network Denial of Service T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MervinPraison | PraisonAI | < 4.6.40 |
affected |
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I. Basic Information for CVE-2026-47393
Vulnerability Information
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Vulnerability Title
PraisonAI `deploy --type api` emits a Flask server with authentication disabled by default
Source: CVE Program / CVE List V5
Vulnerability Description
PraisonAI is a multi-agent teams system. CVE-2026-44338 (GHSA-6rmh-7xcm-cpxj) documents that PraisonAI ships a code-generator (`praisonai.deploy.api.generate_api_server_code`) that emits a Flask API server with authentication disabled by default. Users who follow the documented quickstart (`praisonai deploy --type api`) get a server that binds to `0.0.0.0` per the recommended sample YAML, exposes `/chat` and `/agents` endpoints, runs `praisonai.run()` on user-supplied JSON input — LLM orchestration with the API key materials present in the process environment, and does not require any authentication. Versions prior to 4.6.40 still ship the generator with `auth_enabled` defaulting to `False`. The fix shape is opt-in via `APIConfig(auth_enabled=True, auth_token=...)`. Version 4.6.40 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Mervin Praison PraisonAI 配置错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mervin Praison PraisonAI是Mervin Praison个人开发者开源的一个低代码多智能体协作框架。 Mervin Praison PraisonAI 4.6.40之前版本存在安全漏洞，该漏洞源于默认禁用验证的代码生成器，生成的Flask API服务器绑定到0.0.0.0，暴露/chat和/agents端点，处理用户提供的JSON输入且无需任何身份验证。
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 | < 4.6.40 | - |
|
II. Public POCs for CVE-2026-47393
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Qwen3.6-35B-A3B
· 7588 chars
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III. Intelligence Information for CVE-2026-47393
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Patches & Fixes for CVE-2026-47393 (2)
Vendor Advisories for CVE-2026-47393 (2)
Same Patch Batch · MervinPraison · 2026-07-21 · 25 CVEs total
| CVE-2026-47392 | 9.9 CRITICAL | PraisonAI vulnerable to sandbox escape via `print.__self__` builtins module leak in `execu |
| CVE-2026-47396 | 9.8 CRITICAL | PraisonAI call server exposes unauthenticated agent listing, invocation, and deletion when |
| CVE-2026-47391 | 9.8 CRITICAL | PraisonAI's unauthenticated A2A official example can reach real LLM-driven `eval()` tool e |
| CVE-2026-47410 | 9.8 CRITICAL | praisonai-platform: JWT signing key defaults to hardcoded "dev-secret-change-me", allowing |
| CVE-2026-47413 | 9.6 CRITICAL | praisonai-platform: Any workspace member can add arbitrary user as owner via POST /workspa |
| CVE-2026-47416 | 9.6 CRITICAL | praisonai-platform: Any workspace member can promote themselves (or any other member) to o |
| CVE-2026-47405 | 8.8 HIGH | PraisonAI Platform missing role checks let any workspace member become owner and take over |
| CVE-2026-47399 | 8.8 HIGH | PraisonAI Platform workspace-scoped routes allow cross-workspace object access by global o |
| CVE-2026-47415 | 8.3 HIGH | praisonai-platform: Issue endpoints accept any issue_id without workspace ownership check, |
| CVE-2026-47419 | 8.3 HIGH | praisonai-platform: Agent endpoints accept any agent_id without workspace ownership check, |
| CVE-2026-47409 | 8.1 HIGH | praisonai-platform: Any workspace member can remove any other member (including the owner) |
| CVE-2026-47417 | 8.1 HIGH | praisonai-platform: Comment endpoints accept any issue_id without workspace ownership chec |
| CVE-2026-47412 | 8.1 HIGH | praisonai-platform: Any workspace member can delete the entire workspace via DELETE /works |
| CVE-2026-47418 | 8.1 HIGH | praisonai-platform: Project endpoints accept any project_id without workspace ownership ch |
| CVE-2026-47406 | 8.1 HIGH | praisonai-platform: Dependency endpoints accept any issue_id and dep_id without workspace |
| CVE-2026-47398 | 8.1 HIGH | PraisonAI: Arbitrary code execution via unguarded `spec.loader.exec_module` in `agents_gen |
| CVE-2026-47414 | 7.6 HIGH | praisonai-platform: Label endpoints accept any label_id and any issue_id without workspace |
| CVE-2026-47397 | 7.1 HIGH | PraisonAI has an Arbitrary File Write in Python API |
| CVE-2026-47408 | 6.5 MEDIUM | praisonai-platform: list_issue_activity returns activity log for any issue regardless of w |
| CVE-2026-47411 | 6.5 MEDIUM | praisonai-platform: Any workspace member can rewrite workspace name, description, and sett |
Showing top 20 of 25 CVEs. View all on vendor page → →
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V. Comments for CVE-2026-47393
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