Description
Flowise before 3.1.4 fails to validate baseURL parameters in chat-model nodes, allowing authenticated users to redirect requests to arbitrary hosts. Attackers with chatflows:create or chatflows:update permissions can exfiltrate LLM provider API keys by redirecting requests to cloud metadata services or internal hosts.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FlowiseAI | Flowise | < 3.1.4 | 3.1.4 |
Advisories 1
- WID-SEC-2026-3102 Flowise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 15, 2026
References
- GitHub Security Advisory (GHSA-hx55-h48h-7rw9) vendor-advisory
- VulnCheck Advisory: Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes third-party-advisory