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CVE-2026-41273— Flowise: Unauthenticated OAuth 2.0 Access Token Disclosure via Public Chatflow

EPSS 0.07% · P22
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I. Basic Information for CVE-2026-41273

Vulnerability Information
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Vulnerability Title
Flowise: Unauthenticated OAuth 2.0 Access Token Disclosure via Public Chatflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens associated with a public chatflow. By accessing a public chatflow configuration endpoint, an attacker can retrieve internal workflow data, including OAuth credential identifiers, which can then be used to refresh and obtain valid OAuth 2.0 access tokens without authentication. This vulnerability is fixed in 3.1.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Flowise 访问控制错误漏洞
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 3.1.0之前版本存在访问控制错误漏洞，该漏洞源于认证绕过漏洞，允许未经身份验证的攻击者获取与公共聊天流关联的OAuth 2.0访问令牌。
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

VendorProductAffected VersionsCPESubscribe
FlowiseAIFlowise < 3.1.0 -

II. Public POCs for CVE-2026-41273

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III. Intelligence Information for CVE-2026-41273

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Same Patch Batch · FlowiseAI · 2026-04-23 · 18 CVEs total

CVE-2026-412678.1 HIGHFlowise: Improper Mass Assignment in Account Registration Enables Unauthorized Organizatio
CVE-2026-412727.1 HIGHFlowise: SSRF Protection Bypass (TOCTOU & Default Insecure)
CVE-2026-412707.1 HIGHFlowise: SSRF Protection Bypass via Unprotected Built-in HTTP Modules in Custom Function S
CVE-2026-412697.1 HIGHFlowise: File Upload Validation Bypass in createAttachment
CVE-2026-41268Flowise: Flowise Parameter Override Bypass Remote Command Execution
CVE-2026-41274Flowise: Cypher Injection in GraphCypherQAChain
CVE-2026-41277Flowise: Mass Assignment in DocumentStore Create Endpoint Leads to Cross-Workspace Object
CVE-2026-41264Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
CVE-2026-41137Flowise: Code Injection in CSVAgent leads to Authenticated RCE
CVE-2026-41138Flowise: Remote code execution vulnerability in AirtableAgent.ts caused by lack of input v
CVE-2026-41279Flowise: Unauthenticated TTS endpoint accepts arbitrary credential IDs — enables API credi
CVE-2026-41278Flowise: Public chatflow endpoints return unsanitized flowData including plaintext API key
CVE-2026-41275Flowise: Password Reset Link Sent Over Unsecured HTTP
CVE-2026-41265Flowise: Airtable_Agent Code Injection Remote Code Execution Vulnerability
CVE-2026-41266Flowise: Sensitive Data Leak in public-chatbotConfig
CVE-2026-41276Flowise: AccountService resetPassword Authentication Bypass Vulnerability
CVE-2026-41271Flowise: APIChain Prompt Injection SSRF in GET/POST API Chains

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-306

V. Comments for CVE-2026-41273

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