{"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"}