Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-69254

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, executeJavaScriptCode() accepted caller-provided nodeVMOptions and merged them over the default NodeVM security settings in packages/components/src/utils.ts. An authenticated attacker reaching packages/server/src/routes/node-custom-functions/index.ts could run a custom function that imported flowise-components/dist/src/utils.js, called executeJavaScriptCode() again with nodeVMOptions.require.builtin set to allow all built-in modules, and then required child_process to execute arbitrary system commands as root on the Flowise server. This issue is fixed in version 3.1.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 29.6%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-69254


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