CVE-2026-41277— Flowise: Mass Assignment in DocumentStore Create Endpoint Leads to Cross-Workspace Object Takeover (IDOR)
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I. Basic Information for CVE-2026-41277
Vulnerability Information
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Vulnerability Title
Flowise: Mass Assignment in DocumentStore Create Endpoint Leads to Cross-Workspace Object Takeover (IDOR)
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, a Mass Assignment vulnerability in the DocumentStore creation endpoint allows authenticated users to control the primary key (id) and internal state fields of DocumentStore entities. Because the service uses repository.save() with a client-supplied primary key, the POST create endpoint behaves as an implicit UPSERT operation. This enables overwriting existing DocumentStore objects. In multi-workspace or multi-tenant deployments, this can lead to cross-workspace object takeover and broken object-level authorization (IDOR), allowing an attacker to reassign or modify DocumentStore objects belonging to other workspaces. This vulnerability is fixed in 3.1.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
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DocumentStore创建端点中的批量赋值漏洞，允许经过身份验证的用户控制主键和内部状态字段，导致跨工作区对象接管。
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-2026-41277
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Same Patch Batch · FlowiseAI · 2026-04-23 · 18 CVEs total
| CVE-2026-41267 | 8.1 HIGH | Flowise: Improper Mass Assignment in Account Registration Enables Unauthorized Organizatio |
| CVE-2026-41270 | 7.1 HIGH | Flowise: SSRF Protection Bypass via Unprotected Built-in HTTP Modules in Custom Function S |
| CVE-2026-41272 | 7.1 HIGH | Flowise: SSRF Protection Bypass (TOCTOU & Default Insecure) |
| CVE-2026-41269 | 7.1 HIGH | Flowise: File Upload Validation Bypass in createAttachment |
| CVE-2026-41266 | Flowise: Sensitive Data Leak in public-chatbotConfig | |
| CVE-2026-41265 | Flowise: Airtable_Agent Code Injection Remote Code Execution Vulnerability | |
| CVE-2026-41275 | Flowise: Password Reset Link Sent Over Unsecured HTTP | |
| CVE-2026-41278 | Flowise: Public chatflow endpoints return unsanitized flowData including plaintext API key | |
| CVE-2026-41276 | Flowise: AccountService resetPassword Authentication Bypass Vulnerability | |
| CVE-2026-41268 | Flowise: Flowise Parameter Override Bypass Remote Command Execution | |
| CVE-2026-41279 | Flowise: Unauthenticated TTS endpoint accepts arbitrary credential IDs — enables API credi | |
| CVE-2026-41271 | Flowise: APIChain Prompt Injection SSRF in GET/POST API Chains | |
| CVE-2026-41138 | Flowise: Remote code execution vulnerability in AirtableAgent.ts caused by lack of input v | |
| CVE-2026-41137 | Flowise: Code Injection in CSVAgent leads to Authenticated RCE | |
| CVE-2026-41264 | Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability | |
| CVE-2026-41273 | Flowise: Unauthenticated OAuth 2.0 Access Token Disclosure via Public Chatflow | |
| CVE-2026-41274 | Flowise: Cypher Injection in GraphCypherQAChain |
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-284
- CVE-2026-8233
Dotouch XproUPF access control - CVE-2026-42569
phpvms: /importer authorization bypass causing full database - CVE-2026-42205
Avo: Broken Access Control: Unauthorized Execution of Arbitr - CVE-2026-41487
Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets
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