Flowise 3.1.2 NodeVM Sandbox Escape

Flowise versions through 3.1.2 contain a NodeVM sandbox override that lets authenticated custom-function users re-enable blocked Node.js modules and execute arbitrary system commands. Version 3.1.3 fixes the issue...

PT-2026-105553

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-98xx-8mx4-x7cm. This link is maintained to preserve external references. Original Description vm2 versions from 3.11.3 before 3.11.7 expose the host tls module to NodeVM sandbox code, allowing attackers to call...

WS-2026-0026

vm2 NodeVM sandbox denylist omits the 'os' and 'dns' builtins. Under the documented builtin: '' wildcard configuration, sandboxed code can read host-process state via os.userInfo and os.networkInterfaces, and hijack the host's DNS resolution process-wide via dns.setServers - affecting every...

NPM: Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

NPM: Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode nodeVMOptions Override vulnerability discovered by ? in WordPress Npm flowise-components versions = 3.1.2...

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: 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...

vm2 has a CVE-2023-37903 patch bypass: nesting:true without explicit require still allows full RCE

Summary The fix for GHSA-8hg8-63c5-gwmx CVE-2023-37903 introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality options.require === false, which is trivially bypassed by omitting the require option entirely. When...

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...

GHSA-9RVC-VF7M-PGM2 FlowiseAI: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape

Summary 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 E2BAPIKEY is not configured — the common deployment case — Flowise executes this code inside a NodeVM sandbox...

CVE-2026-41270: Improper Access Control

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Server-Side Request Forgery SSRF protection bypass vulnerability exists in the Custom Function feature. While the application implements SSRF protection via HTTPDENYLIST for axios and...

CVE-2025-34267

Flowise v3.0.1 3.0.8 and all versions after with 'ALLOWBUILTINDEP' enabled contain an authenticated remote code execution vulnerability and node VM sandbox escape due to insecure use of integrated modules Puppeteer and Playwright within the nodevm execution environment. An authenticated attacker...

GHSA-R4HH-PCGX-J5R2 Flowise: Authenticated Command Execution and Sandbox Bypass via Puppeteer and Playwright Packages

Flowise v3.0.1 3.0.8 and all versions after with 'ALLOWBUILTINDEP' enabled contain an authenticated remote code execution vulnerability and node VM sandbox escape due to insecure use of integrated modules Puppeteer and Playwright within the nodevm execution environment. An authenticated attacker...

EUVD-2025-34455

Flowise: Authenticated Command Execution and Sandbox Bypass via Puppeteer and Playwright Packages...

CVE-2025-34267

Flowise v3.0.1 3.0.8 and all versions after with 'ALLOWBUILTINDEP' enabled contain an authenticated remote code execution vulnerability and node VM sandbox escape due to insecure use of integrated modules Puppeteer and Playwright within the nodevm execution environment. An authenticated attacker...