CVE-2026-46442: FlowiseAI NodeVM sandbox escape and RCE vulnerability

# CVE-2026-46442: FlowiseAI NodeVM sandbox escape and RCE vulnerability

https://gcdradar.vercel.app/incidents/cve-2026-46442-flowiseai-nodevm-sandbox-escape-and-rce-vulne · AIR-2026-0669 · closed 2026-05-14

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-05-14
- AI role: Attack on AI
- Products: FlowiseAI
- CVE ids: CVE-2026-46442
- CVSS: 9.4

## Summary

FlowiseAI lacks proper authorization on a custom function endpoint, allowing authenticated users to escape the NodeVM sandbox. This flaw leads to remote code execution on the server host.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-06-08: CVE-2026-46442: Flowise is a drag & drop user interface to build a customized large language model flow. (https://nvd.nist.gov/vuln/detail/CVE-2026-46442)
- 2026-05-14: CVE-2026-46442: FlowiseAI: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape (https://github.com/advisories/GHSA-9rvc-vf7m-pgm2)

## Sources

- 2026-05-14 GitHub Advisory Database: CVE-2026-46442: FlowiseAI: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape https://github.com/advisories/GHSA-9rvc-vf7m-pgm2
- 2026-06-08 NVD: CVE-2026-46442: Flowise is a drag & drop user interface to build a customized large language model flow. https://nvd.nist.gov/vuln/detail/CVE-2026-46442

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.