cvedb.io
CVE-2026-46442
CRITICAL · CVSS 9.9
EPSS exploitation probability: 0%
Published 2026-06-08T16:16:41.347 · Last modified 2026-06-17T10:53:40.637

Summary

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 E2B_APIKEY is not configured — the common deployment case — Flowise executes this code inside a NodeVM sandbox. This sandbox can be escaped, allowing an attacker to reach the host process object and execute system commands via child_process. The result is authenticated remote code execution on the Flowise server host. This issue has been patched in version 3.1.2.

Affected products

flowiseai — flowise

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.