Vulnerability library
Security checkOctober 07, 2026

Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium

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High severitynpmflowise-components

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Description

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.

Recommendation

Update the flowise-components package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 3.1.2
  • Patched version(s): 3.1.3

References

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See something that needs correcting? Let us knowUpdated October 07, 2026