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CVE-2026-91935— Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes

Quick assessment

Affected
FlowiseAI Flowise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flowise 在 3.1.4 之前的版本未能对聊天模型节点中的 参数进行有效验证，导致经过身份验证的用户可以将请求重定向到任意主机。拥有 或 权限的攻击者可以通过将请求重定向到云元数据服务或内部主机，窃取大型语言模型（LLM）提供商的 API 密钥。

CVSS 8.3 · High
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I. Basic Information for CVE-2026-91935

Vulnerability Information
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Vulnerability Title
Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FlowiseAI Flowise 0 ~ 3.1.4 -
FlowiseAI Flowise 0 ~ 3.1.4 -

II. Public POCs for CVE-2026-91935

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III. Intelligence Information for CVE-2026-91935

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Vendor Advisories for CVE-2026-91935 (2)

Same Patch Batch · FlowiseAI · 2026-09-15 · 10 CVEs total

CVE-2026-91934 8.8 HIGH Flowise before 3.1.4 Remote Code Execution via SQL Database Chain
CVE-2026-91931 8.5 HIGH Flowise before 3.1.4 Remote Code Execution via Custom MCP npx
CVE-2026-91932 8.5 HIGH Flowise before 3.1.4 Remote Code Execution via cwd Parameter
CVE-2026-91930 7.5 HIGH Flowise before 3.1.4 Cross-Tenant Organization Admin Takeover
CVE-2026-91937 7.5 HIGH Flowise before 3.1.4 NoSQL Injection via sessionId
CVE-2026-91933 7.1 HIGH Flowise before 3.1.4 Authorization Bypass via openai-realtime
CVE-2026-91929 7.1 HIGH Flowise before 3.1.4 Cross-Tenant Authorization Bypass
CVE-2026-91938 7.1 HIGH Flowise before 3.1.4 Server-Side Request Forgery via document loaders
CVE-2026-91936 6.8 MEDIUM Flowise before 3.1.4 Script Injection via Docker Workflows

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-918

V. Comments for CVE-2026-91935

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