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CVE-2026-46440— Flowise: Basic Auth Credentials Exposed via API

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 3.1.2之前版本存在安全漏洞，该漏洞源于checkBasicAuth端点以明文验证凭据且无速率限制，可能导致凭据泄露。

AI Predicted 5.3 Difficulty: Easy EPSS 0.42% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
FlowiseAI Flowise < 3.1.2 affected
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I. Basic Information for CVE-2026-46440

Vulnerability Information
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Vulnerability Title
Flowise: Basic Auth Credentials Exposed via API
Source: CVE Program / CVE List V5
Vulnerability Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, the checkBasicAuth endpoint validates credentials in plaintext without rate limiting and with direct comparison. This issue has been patched in version 3.1.2.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
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 3.1.2之前版本存在安全漏洞，该漏洞源于checkBasicAuth端点以明文验证凭据且无速率限制，可能导致凭据泄露。
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 < 3.1.2 -

II. Public POCs for CVE-2026-46440

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III. Intelligence Information for CVE-2026-46440

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Vendor Advisories for CVE-2026-46440 (1)

Vendor Pages for CVE-2026-46440 (1)

Same Patch Batch · FlowiseAI · 2026-06-08 · 14 CVEs total

CVE-2026-42862 Flowise: Mass Assignment in Tool Update Endpoint Allows Cross-Workspace Resource Reassignm
CVE-2026-42861 Flowise: Mass Assignment in Variable Update Endpoint Allows Cross-Workspace Resource Reass
CVE-2026-42863 Flowise: Mass Assignment in Chatflow Update Endpoint Allows Cross-Workspace AgentFlow Reas
CVE-2026-46476 Flowise: CustomTemplate create+update mass-assignment allows cross-workspace template take
CVE-2026-46479 Flowise: Evaluation create+update mass-assignment allows cross-workspace evaluation takeov
CVE-2026-46475 Flowise: Assistant create+update mass-assignment allows cross-workspace assistant takeover
CVE-2026-46444 Flowise: Vector Store No Permission Checks
CVE-2026-46478 Flowise: DatasetRow create+update mass-assignment allows cross-workspace row takeover
CVE-2026-46442 Flowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox E
CVE-2026-46477 Flowise: Dataset create+update mass-assignment allows cross-workspace dataset takeover
CVE-2026-46480 Flowise: Evaluator create+update mass-assignment allows cross-workspace evaluator takeover
CVE-2026-46443 Flowise: Credential Data Leak
CVE-2026-46441 Flowise: Mass Assignment in Assistant Update Endpoint Allows Cross-Workspace Resource Reas

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-522

V. Comments for CVE-2026-46440

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