CVE-2026-91935
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
- EPSS probability
- 0.27%
- CWE
- CWE-918
- Published
- 2026-09-15
- Last modified
- 2026-09-15
Affected products
- FlowiseAI Flowise
- FlowiseAI Flowise
Weakness type
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