GHSA-9hrv-gvrv-6gf2
Flowise Execute Flow function has an SSRF vulnerability
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | flowise | < 3.1.0 | 3.1.0 |
| npm | flowise-components | < 3.1.0 | 3.1.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Summary
The attacker provides an intranet address through the base url field configured in the Execute Flow node
→ Bypass checkDenyList / resolveAndValidate in httpSecurity.ts (not called)
→ Causes the server to initiate an HTTP request to any internal network address, read cloud metadata, or detect internal network services
### Details
<img width="1280" height="860" alt="9a52a74e6fe2fd78e4962d1d68057fc2" src="https://github.com/user-attachments/assets/20df0006-9129-4886-8928-16d19a617c23" />
Then initiate the call:
```
POST /api/v1/prediction/d6739838-d3b3-43d9-86ff-911a3d757a7e HTTP/1.1
Host: 127.0.0.1:3000
Content-Type: application/json
Authorization: Bearer apikey
Content-Length: 17
{"question": "1"}
```
Server received a request:
<img width="1432" height="172" alt="f45c757fec408e13739db068252ff21b" src="https://github.com/user-attachments/assets/d3dfe0f5-83ec-4c79-ab32-754382a68d5f" />
And there is an echo:
<img width="1280" height="666" alt="fa0caf0deb306cfeeea8fdf8941a287e" src="https://github.com/user-attachments/assets/55a94d25-120b-4e9c-9517-46c2fc2b667f" />
Fix:
Call secureFetch for verification
### Impact
This is a Server-Side Request Forgery (SSRF) vulnerability that may lead to the following risks:
- Explore Internal Web Applications
- Access sensitive management interfaces
- Leak internal configuration, credentials, or confidential information
This vulnerability significantly increases the risk of internal service enumeration and potential lateral movement in enterprise environments.
References
External links from the advisory. They lead to third-party sites.