Flowise MCP Server Remote Code Execution

Flowise versions from 2.2.7 prior to 3.1.2 are vulnerable to remote code execution through the Custom MCP Model Context Protocol node configuration. The vulnerability exists in the /api/v1/node-load-method/customMCP endpoint, which accepts arbitrary command and argument configurations for MCP...

CVE-2026-56268

Flowise before 3.1.2 contains an information disclosure vulnerability in the /api/v1/chatflows/apikey/:apikey endpoint. When the keyonly query parameter is omitted the default, the endpoint returns not only the chatflows bound to the supplied API key but also all chatflows across every workspace...

CVE-2026-56268

Flowise ≤ 3.1.1 is vulnerable via /api/v1/chatflows/apikey/:apikey. The keyonly parameter omission returns chatflows bound to the API key plus unprotected chatflows across all workspaces (no workspace filter). attacker with valid API key can read full ChatFlow configuration (flowData with system ...

CVE-2026-56268 Flowise - Cross-Workspace Information Disclosure via chatflows/apikey Endpoint

Flowise before 3.1.2 contains an information disclosure vulnerability in the /api/v1/chatflows/apikey/:apikey endpoint. When the keyonly query parameter is omitted the default, the endpoint returns not only the chatflows bound to the supplied API key but also all chatflows across every workspace...

EUVD-2026-38367

Flowise before 3.1.2 contains an information disclosure vulnerability in the /api/v1/chatflows/apikey/:apikey endpoint. When the keyonly query parameter is omitted the default, the endpoint returns not only the chatflows bound to the supplied API key but also all chatflows across every workspace...

CVE-2026-56268 Flowise - Cross-Workspace Information Disclosure via chatflows/apikey Endpoint

Flowise before 3.1.2 contains an information disclosure vulnerability in the /api/v1/chatflows/apikey/:apikey endpoint. When the keyonly query parameter is omitted the default, the endpoint returns not only the chatflows bound to the supplied API key but also all chatflows across every workspace...

CVE-2026-56268

Flowise before 3.1.2 contains an information disclosure vulnerability in the /api/v1/chatflows/apikey/:apikey endpoint. When the keyonly query parameter is omitted the default, the endpoint returns not only the chatflows bound to the supplied API key but also all chatflows across every workspace...

CVE-2026-12821 FlowiseAI Flowise S3 Document Loader S3.ts path traversal

A vulnerability was determined in FlowiseAI Flowise up to 3.1.2. The impacted element is an unknown function of the file packages/components/nodes/documentloaders/S3/S3.ts of the component S3 Document Loader. Executing a manipulation can lead to path traversal. It is possible to launch the attack...

CVE-2026-12821

Flowise Flowise (up to 3.1.2) is affected by a path traversal vulnerability in the S3 Document Loader, specifically in packages/components/nodes/documentloaders/S3/S3.ts. The description notes an unknown function as the vulnerable element and states that an attacker can exploit this remotely to t...

CVE-2026-12821

A vulnerability was determined in FlowiseAI Flowise up to 3.1.2. The impacted element is an unknown function of the file packages/components/nodes/documentloaders/S3/S3.ts of the component S3 Document Loader. Executing a manipulation can lead to path traversal. It is possible to launch the attack...

Duplicate Advisory: Flowise OverrideConfig security vulnerability

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5cph-wvm9-45gj. This link is maintained to preserve external references. Original Description Flowise before 2.1.4 allows configuration to be injected into the Chainflow during execution via the overrideConfig...

CVE-2026-56276

Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password has...

CVE-2025-71331

Flowise before 3.0.8 contains a cross-site scripting XSS vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload e.g., in a chat box, or by having a custom agent function return an X...

CVE-2024-58351

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-list of permitted variables and relie...

CVE-2026-56276 Flowise - Mass Assignment in PUT /api/v1/user Allows Password Hash Override

Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password has...

CVE-2026-56276 Flowise - Mass Assignment in PUT /api/v1/user Allows Password Hash Override

Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password has...

EUVD-2026-38119

Flowise before 3.1.2 contains a mass assignment vulnerability in the PUT /api/v1/user endpoint that allows authenticated users to directly modify the credential field without validation. Attackers can bypass password change verification and session invalidation by supplying a crafted password has...

CVE-2026-56276

Flowise (Flowise) before 3.1.2 has a mass-assignment vulnerability in PUT /api/v1/user that lets an authenticated user modify the credential field without validation. The attacker can bypass password-change verification and session invalidation by supplying a crafted password hash, enabling persi...

CVE-2026-56267 Flowise - PII Disclosure via Unauthenticated Forgot Password Endpoint

Flowise before 3.0.13 contains an information exposure vulnerability in the POST /api/v1/account/forgot-password endpoint that returns full user objects including PII to unauthenticated attackers. An attacker can enumerate valid email addresses and harvest sensitive user data including user IDs,...

EUVD-2026-38118

Flowise before 3.0.13 contains an information exposure vulnerability in the POST /api/v1/account/forgot-password endpoint that returns full user objects including PII to unauthenticated attackers. An attacker can enumerate valid email addresses and harvest sensitive user data including user IDs,...