CVE-2026-119978

Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by abusing allowlisted langchain and mammoth modules when ALLOWBUILTINDEP=true. Attackers can submit JavaScript to /api/v1/node-custom-function that writes a file into the mammoth...

CVE-2026-119978 Flowise through 3.1.4 Custom Function Sandbox Escape RCE via LocalFileStore

Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by abusing allowlisted langchain and mammoth modules when ALLOWBUILTINDEP=true. Attackers can submit JavaScript to /api/v1/node-custom-function that writes a file into the mammoth...

CVE-2026-119978

Versions of Flowise through 3.1.4 are vulnerable to a sandbox escape vulnerability leading to Remote Code Execution (RCE) . When ALLOW_BUILTIN_DEP=true is enabled, an authenticated user can submit malicious JavaScript to the /api/v1/node-custom-function endpoint. This allows the attacker to abuse...

PT-2026-133730

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.5 Description Authenticated users can execute operating system commands by escaping the custom function sandbox. This occurs when the ALLOW BUILTIN DEP variable is set to true, allowing the abuse of allowlisted...

CVE-2026-119978: FlowiseAI Flowise: Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by…

Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by abusing allowlisted langchain and mammoth modules when ALLOWBUILTINDEP=true. Attackers can submit JavaScript to /api/v1/node-custom-function that writes a file into the mammoth...

GHSA-9GVV-QJJ3-2P6G Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium

Flowise packages flowise and flowise-components in versions = 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and...

Duplicate Advisory: Flowise contains an unauthenticated sandbox escape

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9gvv-qjj3-2p6g. This link is maintained to preserve external references. Original Description Flowise packages flowise and flowise-components in versions = 3.1.2 contain a sandbox escape in the...

GHSA-6J9G-8FXC-25HQ Duplicate Advisory: Flowise contains an unauthenticated sandbox escape

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9gvv-qjj3-2p6g. This link is maintained to preserve external references. Original Description Flowise packages flowise and flowise-components in versions = 3.1.2 contain a sandbox escape in the...

CVE-2026-70471

Flowise is a drag-and-drop user interface for building customized large language model LLM flows. Prior to 3.1.3, Flowise injects $vars into the code execution sandbox without requiring variables:view, bypassing the permission-protected Variables API. Variables for the active workspace are fetche...

PT-2026-67810

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.3 Description Flowise injects $vars into the code execution sandbox without requiring the variables:view permission, which bypasses the permission-protected Variables API. An unauthorized user or API key denied...

CVE-2026-46442

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 the Custom JS Function node. When...

CVE-2026-46442

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 the Custom JS Function node. When...

CVE-2026-46442

Flowise prior to v3.1.2 exposes an unauthenticated route POST /api/v1/node-custom-function that can accept arbitrary JavaScript in a Custom JS Function node. If E2B_APIKEY is not configured, code runs in a NodeVM sandbox and can be escaped to reach host process and execute system commands, enabli...

CVE-2026-46442 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 the Custom JS Function node. When...

CVE-2026-46442 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 the Custom JS Function node. When...

Flowise code injection vulnerability

Flowise is an open-source tool developed by FlowiseAI, designed for easily building LLM applications. Versions of Flowise prior to 3.1.2 contained a code injection vulnerability. This vulnerability stemmed from the lack of routing-level authorization in the POST /api/v1/node-custom-function...

CVE-2026-46442: Improper Control of Generation of Code

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 the Custom JS Function node. When...

Authenticated Remote Code Execution

Flowise is vulnerable to authenticated remote code execution. The vulnerability is due to missing route-level authorization in the POST /api/v1/node-custom-function endpoint, which allows an authenticated attacker to submit arbitrary JavaScript, escape the NodeVM sandbox when E2BAPIKEY is not...

Arbitrary Code Injection

Overview flowise-components is a Flowiseai Components Affected versions of this package are vulnerable to Arbitrary Code Injection via the node-custom-function endpoint when user-supplied JavaScript is executed in a NodeVM sandbox without sufficient route-level authorization. A user can execute...

NPM: FlowiseAI: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape

NPM: FlowiseAI: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape vulnerability discovered by ? in WordPress Npm flowise versions = 3.1.1...