CVE-2026-73483

The record

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 args parameters to puppeteer.launch(), which internally invokes child_process.spawn() outside the sandbox boundary. This allows execution of arbitrary OS commands as the Flowise process user (root in the official Docker image) and arbitrary host file disclosure via Chromium's file:// URL handling. In versions 3.0.8–3.1.2 exploitation requires ALLOW_BUILTIN_DEP=true; earlier versions are exploitable by default. Fixed in 3.1.3.

Affected packages

Related vulnerabilities

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• CVE-2026-113732 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113776 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113726 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113725 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-113722 virtualenv is a tool for creating isolated virtual python environments. CWE-78
• CVE-2026-112943 launch-editor allows users to open files with line numbers in editor from Node.js. CWE-78
• CVE-2026-112900 Pillow is a Python imaging library. CWE-78