CVE-2026-41277— Flowise: Mass Assignment in DocumentStore Create Endpoint Leads to Cross-Workspace Object Takeover (IDOR)
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 3.1.0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。
Possible ATT&CK Techniques 1 AI
T1528 · Steal Application Access Token
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
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
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-41277 (1)
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
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CVE-2026-100610
Flowise through 3.1.4 Missing Authorization via upsert-histo -
CVE-2026-100609
Flowise through 3.1.4 Insecure Direct Object Reference via C -
CVE-2026-100608
Flowise through 3.1.4 Authorization Bypass via BullMQ Dashbo -
CVE-2026-100607
Flowise through 3.1.4 Authentication Bypass via Email-Only S -
CVE-2026-100606
Flowise through 3.1.4 Authentication Bypass via SSO Email Ma
Same vendor: FlowiseAI
-
CVE-2026-100610
Flowise through 3.1.4 Missing Authorization via upsert-histo -
CVE-2026-100609
Flowise through 3.1.4 Insecure Direct Object Reference via C -
CVE-2026-100607
Flowise through 3.1.4 Authentication Bypass via Email-Only S -
CVE-2026-100608
Flowise through 3.1.4 Authorization Bypass via BullMQ Dashbo -
CVE-2026-100606
Flowise through 3.1.4 Authentication Bypass via SSO Email Ma
Same weakness: CWE-284
-
CVE-2026-103085
WordPress WP User Manager plugin <= 2.9.20 - Privilege Escal -
CVE-2026-105632
Plane: Broken Access Control - joinProject GraphQL mutation -
CVE-2026-104974
Plane: Disabled User Auto-Reactivation on Login -
CVE-2026-102795
Apache Traffic Server: SNI to Host header matching policy is -
CVE-2026-63045
Apache HTTP Server: mod_proxy_ftp PASV address handling
V. Comments for CVE-2026-41277
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