CVE-2025-8943— Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers
Quick assessment
Affected
CVE-2025-8943
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.
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。
Public Exploits 2
Metasploit · 1
flowise_custommcp_rce.rb [exploit]
Nuclei · 1
CVE-2025-8943.yaml [template]
Possible ATT&CK Techniques 3 AI
T1078 · Valid Accounts T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationI. Basic Information for CVE-2025-8943
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers
Source: CVE Program / CVE List V5
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: 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
N/A
Source: CVE Program / CVE List V5
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
II. Public POCs for CVE-2025-8943
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | 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. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-8943.yaml | POC Details |
| 2 | CVE-2025-8943 | https://github.com/B1ack4sh/Blackash-CVE-2025-8943 | POC Details |
| 3 | CVE-2025-8943 | https://github.com/Ashwesker/Blackash-CVE-2025-8943 | POC Details |
| 4 | CVE-2025-8943 | https://github.com/Ashwesker/Ashwesker-CVE-2025-8943 | POC Details |
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-8943
请登录查看更多情报信息。
V. Comments for CVE-2025-8943
Anonymous User
2026-01-15 06:08:56Zaproxy alias impedit expedita quisquam pariatur exercitationem. Nemo rerum eveniet dolores rem quia dignissimos.