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Critical 9.0
Flowise before 3.1.3 Prompt Injection RCE via CSV Agent
Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() …
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Critical 9.2
Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables token theft for any connected service
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the POST /api/v1/oauth2-credential/refresh/:credentialId endpoint is included in WHITELIST_URLS and requires no authentication. The endpoint decrypts the …
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Critical 9.5
Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, a prompt injection sent to a chatflow using a CSV Agent node can cause the LLM to respond with a malicious Python script that bypasses the blocklist valid…
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Critical 9.5
Flowise: Pyodide validator Unicode homoglyph bypass leads to RCE
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, Flowise validatePythonCodeForDataFrame in packages/components/src/pythonCodeValidator.ts can be bypassed with Unicode homoglyph identifiers, allowing arbi…
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Critical 9.4
Flowise: RCE via CSVAgent csvFile data URI base64 segment is interpolated into Python source without validation
Prior to 3.1.3, Flowise CSVAgent interpolates an attacker-controlled segment of the csvFile data URI directly into a Python source-code template that is then executed by Pyodide. Because Pyodide is loaded with the default js bridge to globalThis, which on Nod…
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Critical 9.4
Flowise RCE via SQLite Record Manager Node
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the SQLite Record Manager node in packages/components/nodes/recordmanager/SQLiteRecordManager/SQLiteRecordManager.ts accepted user-controlled additionalCo…
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Critical 9.4
Flowise: Remote Code Execution Vulnerability in CSVAgent
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent node allowed users to provide Python code that is executed through pyodide; although a denylist blocked dangerous Python constructs, pandas.r…
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Critical 9.2
Flowise: CSV Agent Remote Code Execution via Pyodide Code Injection — Root Shell Verified
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop() and interpolated i…
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Critical 9.4CVE-2026-69254 Public exploit
Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode() accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages/components/src/utils.…
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Critical 9.0
Flowise Sandbox Escape to RCE
Flowise is a drag-and-drop user interface for building customized large language model (LLM) flows. Prior to version 3.1.3, several custom-tool components — AgentAsTool, ChatflowTool, and ExecuteFlow — ran code in the in-process vm2 sandbox. To build that c…
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Critical 9.0CVE-2026-69251 Scanner template
Flowise RCE via TypeORM DataSource
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, Flowise record manager and agent memory nodes allowed users to set arbitrary TypeORM DataSource options through the additionalConfig input in packages/com…
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Critical 9.8
Flowise - Weak Default JWT Secrets in Authentication Middleware
Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses weak hardcoded default JWT secrets ('auth_token', 'refresh_token') and default audience and issuer values ('AUDIENCE', 'ISSUER') in the enterprise passport authentication middleware (packages/se…
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Critical 9.1
Flowise - Session Hijacking via Weak Default Express Session Secret
Flowise before 3.1.0 (affected versions 3.0.13 and earlier) uses a weak hardcoded default secret ('flowise') for the express-session middleware when the EXPRESS_SESSION_SECRET environment variable is not set (packages/server/src/enterprise/middleware/passport…
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Critical 10.0CVE-2025-71338 Public exploit
Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
Flowise through 2.2.7 fails to sanitize path segments in the document-store loader endpoint, allowing unauthenticated attackers to write files outside the storage directory. Attackers can use parent-directory sequences to escape the storage directory and over…
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Critical 9.8
Flowise - Unsandboxed Remote Code Execution via Custom MCP
Flowise before 3.0.6 (affected versions 2.2.7-patch.1 and earlier) contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise's authentic…
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Critical 9.8CVE-2025-71334 Scanner template
Flowise - Arbitrary File Access via Missing Chat Flow ID Validation
Flowise before 3.0.6 contains an arbitrary file access vulnerability due to missing validation that the chatflowId and chatId parameters are UUIDs or numbers in file handling operations. By supplying a path-traversal value (e.g., '../../../../../tmp') as the …
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Critical 9.3
Flowise - Arbitrary File Upload via Unauthenticated /api/v1/attachments Endpoint
Flowise through 2.2.4 contains an unauthenticated arbitrary file upload vulnerability in the /api/v1/attachments endpoint when storageType is set to local. Attackers can exploit path traversal in the chatId and chatflowId parameters to upload malicious files …
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Critical 9.1
Flowise - Authentication Bypass via Unprotected Registration Endpoint
Flowise contains an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint that allows unauthenticated attackers to create user accounts. Remote attackers can exploit this endpoint to register arbitrary accounts and authentic…
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Critical 9.9CVE-2026-56274 Public exploit
Flowise - Remote Code Execution via MCP Security Bypass in validateCommandFlags and validateArgsForLocalFileAccess
Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API…
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Critical 9.8
Flowise - Remote Code Execution via overrideConfig Parameter
Flowise before 2.1.4 allows configuration to be injected into the Chainflow during execution via the overrideConfig option, supported in both the frontend web integration and the backend Prediction API. Because this feature is enabled by default with no allow…
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Critical 9.4
Flowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, POST /api/v1/node-custom-function lacks route-level authorization, allowing any authenticated user or API key to submit arbitrary JavaScript to th…
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Critical 9.3
Flowise: Cypher Injection in GraphCypherQAChain
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the GraphCypherQAChain node forwards user-provided input directly into the Cypher query execution pipeline without proper sanitization. An attacker can in…
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Critical 9.2CVE-2026-41264 Public exploit
Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM genera…
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Critical 9.2
Flowise: Airtable_Agent Code Injection Remote Code Execution Vulnerability
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the Airtable_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM g…
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Critical 9.4
Flowise: Code Injection in CSVAgent leads to Authenticated RCE
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, The CSVAgent allows providing a custom Pandas CSV read code. Due to lack of sanitization, an attacker can provide a command injection payload that will ge…
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Critical 10.0CVE-2026-40933 EPSS 12%
Flowise: Authenticated RCE Via MCP Adapters
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, due to unsafe serialization of stdio commands in the MCP adapter, an authenticated attacker can add an MCP stdio server with an arbitrary command, achievi…
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Critical 10.0CVE-2025-61913 EPSS 14%
Flowise is vulnerable to arbitrary file read, arbitrary file write
Flowise is a drag & drop user interface to build a customized large language model flow. In versions prior to 3.0.8, WriteFileTool and ReadFileTool in Flowise do not restrict file path access, allowing authenticated attackers to exploit this vulnerability to …
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Critical 10.0
Flowise has Remote Code Execution vulnerability
Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, Flowise is vulnerable to remote code execution. The CustomMCP node allows users to input configuration settings for connecting to an external MCP server…
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Critical 9.8
Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover
Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5 and earlier, the `forgot-password` endpoint in Flowise returns sensitive information including a valid password reset `tempToken` without authentication …
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Critical 9.8
Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers
The Custom MCPs feature is designed to execute OS commands, for instance, using tools like `npx` to spin up local MCP Servers. However, Flowise's inherent authentication and authorization model is minimal and lacks role-based access controls (RBAC). Furthermo…
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Critical 9.8CVE-2025-55346 EPSS 24%
Unintended dynamic code execution leads to remote code execution by network attackers
User-controlled input flows to an unsafe implementation of a dynamic Function constructor, allowing network attackers to run arbitrary unsandboxed JS code in the context of the host, by sending a simple POST request.
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Critical 9.8
FlowiseAI Flowise arbitrary file upload vulnerability
FlowiseAI Flowise v2.2.6 was discovered to contain an arbitrary file upload vulnerability in /api/v1/attachments.
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Critical 9.6
Flowise Stored Cross-Site Scripting
Flowise < 2.1.1 suffers from a Stored Cross-Site vulnerability due to a lack of input sanitization in Flowise Chat Embed < 2.0.0.
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Critical 9.8
Flowise Authentication Bypass
An Authentication Bypass vulnerability exists in Flowise version 1.8.2. This could allow a remote, unauthenticated attacker to access API endpoints as an administrator and allow them to access restricted functionality.