cve-2026-46442
HIGH vulncheck_kevFlowise 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.
- Published
- 2026-07-17 00:00 UTC
- Last Modified
- 2026-07-17
CVSS details not available.
No product information available.
No references available.
No linked vulnerabilities found.
{
"cvss": 0.0,
"datePublished": "2026-07-17T00:00:00Z",
"dateUpdated": "2026-07-17T00:00:00Z",
"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.",
"dueDate": "",
"id": "CVE-2026-46442",
"kev_catalogs": [
"vulncheck"
],
"knownRansomwareCampaignUse": "Unknown",
"product": "Flowise",
"requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
"severity": "HIGH",
"source": "vulncheck_kev",
"title": "FlowiseAI Flowise Improper Control of Generation of Code",
"vendor": "FlowiseAI"
}