CVE-2026-69254

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.ts. An authenticated attacker reaching...

GHSA-3769-JGQC-CXM7 Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

Summary A sandbox escape vulnerability in executeJavaScriptCode allows any authenticated user to execute arbitrary system commands as root on the Flowise server. The function accepts caller-provided nodeVMOptions that override the default sandbox security settings via JavaScript's spread operator...

CVE-2026-69254

CVE-2026-69254 affects Flowise versions before 3.1.3. The issue arises in the executeJavaScriptCode() path where caller-provided nodeVMOptions are merged with default NodeVM security settings, allowing an attacker to override the sandbox protection. By reaching packages/server/src/routes/node-cus...