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CVE-2026-8027— FlowiseAI Flowise User Controller authorization

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是FlowiseAI开源的一个用于轻松构建 LLM 应用程序的工具。 Flowise 3.0.12及之前版本存在授权问题漏洞，该漏洞源于用户控制器处理器中参数userId/organizationId/workspaceId/email操作问题，可能导致授权绕过。

CVSS 4.3 · Medium EPSS 0.29% · P21

Affected Version Matrix 13

VendorProduct Version RangeStatus
FlowiseAI Flowise 3.0.0 affected
3.0.1 affected
3.0.2 affected
3.0.3 affected
3.0.4 affected
3.0.5 affected
3.0.6 affected
3.0.7 affected
… +5 more rows
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I. Basic Information for CVE-2026-8027

Vulnerability Information
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Vulnerability Title
FlowiseAI Flowise User Controller authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in FlowiseAI Flowise up to 3.0.12. Affected by this vulnerability is an unknown functionality of the component User Controller Handler. This manipulation of the argument userId/organizationId/workspaceId/email causes authorization bypass. The attack may be initiated remotely. The affected component should be upgraded.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Flowise 授权问题漏洞
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 3.0.12及之前版本存在授权问题漏洞，该漏洞源于用户控制器处理器中参数userId/organizationId/workspaceId/email操作问题，可能导致授权绕过。
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

Vendor Product Affected Versions CPE Subscribe
FlowiseAI Flowise 3.0.0 cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8027

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III. Intelligence Information for CVE-2026-8027

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Proof of Concept for CVE-2026-8027 (1)

Same Patch Batch · FlowiseAI · 2026-05-06 · 3 CVEs total

CVE-2026-8026 3.7 LOW FlowiseAI Flowise API Response account.service.ts login information disclosure
CVE-2026-8028 3.7 LOW FlowiseAI Flowise Endpoint account.service.ts verify information disclosure

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-639

V. Comments for CVE-2026-8027

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