CVE-2026-46442

9.9 CRITICAL

Flowise is a drag & drop user interface to build a customized large language model flow

Published: 2026-06-08 · Last updated: 2026-06-11

Severity and scoring

CVSS: 9.9 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE: CWE-94

Affected products

Vendor	Product
flowiseai	flowise

Description

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46442
[Other]https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2
[Vendor advisory]https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9rvc-vf7m-pgm2
[Vendor advisory]https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9rvc-vf7m-pgm2

Related CVEs

Same vendor

CVE-2026-46480 — Flowise is a drag & drop user interface to build a customized large language model flow (8.8 HIGH)
CVE-2026-46444 — Flowise is a drag & drop user interface to build a customized large language model flow (8.8 HIGH)
CVE-2026-46443 — Flowise is a drag & drop user interface to build a customized large language model flow (6.5 MEDIUM)
CVE-2026-46441 — Flowise is a drag & drop user interface to build a customized large language model flow (9.6 CRITICAL)
CVE-2026-46440 — Flowise is a drag & drop user interface to build a customized large language model flow (9.1 CRITICAL)

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