CVE-2026-30820— Flowise Authorization Bypass via Spoofed x-request-from Header
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I. Basic Information for CVE-2026-30820
Vulnerability Information
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Vulnerability Title
Flowise Authorization Bypass via Spoofed x-request-from Header
Source: NVD (National Vulnerability Database)
Vulnerability Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, Flowise trusts any HTTP client that sets the header x-request-from: internal, allowing an authenticated tenant session to bypass all /api/v1/** authorization checks. With only a browser cookie, a low-privilege tenant can invoke internal administration endpoints (API key management, credential stores, custom function execution, etc.), effectively escalating privilege. This issue has been patched in version 3.0.13.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Flowise 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flowise是FlowiseAI开源的一个用于轻松构建 LLM 应用程序的工具。 Flowise 3.0.13之前版本存在安全漏洞，该漏洞源于信任任意设置x-request-from标头的HTTP客户端，可能导致低权限租户绕过授权检查并提升权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-30820
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- Release flowise@3.0.13 · FlowiseAI/Flowise · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-30820
Same Patch Batch · FlowiseAI · 2026-03-07 · 5 CVEs total
| CVE-2026-30824 | Flowise: Missing Authentication on NVIDIA NIM Endpoints | |
| CVE-2026-30823 | Flowise: IDOR leading to Account Takeover and Enterprise Feature Bypass via SSO Configurat | |
| CVE-2026-30822 | Flowise: Mass Assignment in `/api/v1/leads` Endpoint | |
| CVE-2026-30821 | Flowise: Arbitrary File Upload via MIME Spoofing |
IV. Related Vulnerabilities
Same product: Flowise
- CVE-2026-8028
FlowiseAI Flowise Endpoint account.service.ts verify informa - CVE-2026-8027
FlowiseAI Flowise User Controller authorization - CVE-2026-8026
FlowiseAI Flowise API Response account.service.ts login info - CVE-2026-41274
Flowise: Cypher Injection in GraphCypherQAChain - CVE-2026-41264
Flowise: CSV Agent Prompt Injection Remote Code Execution Vu
Same vendor: FlowiseAI
- CVE-2026-8028
FlowiseAI Flowise Endpoint account.service.ts verify informa - CVE-2026-8027
FlowiseAI Flowise User Controller authorization - CVE-2026-8026
FlowiseAI Flowise API Response account.service.ts login info - CVE-2026-41274
Flowise: Cypher Injection in GraphCypherQAChain - CVE-2026-41264
Flowise: CSV Agent Prompt Injection Remote Code Execution Vu
Same weakness: CWE-863
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V. Comments for CVE-2026-30820
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