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CVE-2026-91938— Flowise before 3.1.4 Server-Side Request Forgery via document loaders

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 版本之前存在服务器端请求伪造（SSRF）漏洞，该漏洞位于 Cheerio、Playwright 和 Puppeteer 文档加载器节点中，并且可以绕过 SSRF 防护机制。攻击者可以提供任意 URL 来获取云元数据、内部服务和私有网络资源，且响应内容会作为文档文本返回。

CVSS 7.1 · High
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I. Basic Information for CVE-2026-91938

Vulnerability Information
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Vulnerability Title
Flowise before 3.1.4 Server-Side Request Forgery via document loaders
Source: CVE Program / CVE List V5
Vulnerability Description
Flowise versions before 3.1.4 contain a server-side request forgery vulnerability in Cheerio, Playwright, and Puppeteer document loader nodes that bypass SSRF protection. Attackers can provide arbitrary URLs to fetch cloud metadata, internal services, and private network resources with response content returned as document text.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/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-2026-91938

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III. Intelligence Information for CVE-2026-91938

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Vendor Advisories for CVE-2026-91938 (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-2026-91935 8.3 HIGH Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes
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-2026-91936 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-2026-91938

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