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I. Basic Information for CVE-2025-8943
Vulnerability Information
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Vulnerability Title
Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Custom MCPs feature is designed to execute OS commands, for instance, using tools like `npx` to spin up local MCP Servers. However, Flowise's inherent authentication and authorization model is minimal and lacks role-based access controls (RBAC). Furthermore, in Flowise versions before 3.0.1 the default installation operates without authentication unless explicitly configured. This combination allows unauthenticated network attackers to execute unsandboxed OS commands.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Flowise 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flowise是FlowiseAI开源的一个用于轻松构建 LLM 应用程序的工具。 Flowise 3.0.1之前版本存在安全漏洞，该漏洞源于默认安装缺乏身份验证和基于角色的访问控制，可能导致执行未沙箱化的OS命令。
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)
II. Public POCs for CVE-2025-8943
#POC DescriptionSource LinkShenlong Link
1The Custom MCPs feature is designed to execute OS commands, for instance, using tools like `npx` to spin up local MCP Servers. However, Flowise's inherent authentication and authorization model is minimal and lacks role-based access controls (RBAC). Furthermore, in Flowise versions before 3.0.1 the default installation operates without authentication unless explicitly configured. This combination allows unauthenticated network attackers to execute unsandboxed OS commands. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-8943.yamlPOC Details
2CVE-2025-8943https://github.com/B1ack4sh/Blackash-CVE-2025-8943POC Details
3CVE-2025-8943https://github.com/Ashwesker/Blackash-CVE-2025-8943POC Details
4CVE-2025-8943https://github.com/Ashwesker/Ashwesker-CVE-2025-8943POC Details
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III. Intelligence Information for CVE-2025-8943
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V. Comments for CVE-2025-8943
Anonymous User
2026-01-15 06:08:56

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