by Kastro
Paper/Archive/CVE-2026-69254

CVE-2026-69254

FlowiseAI Flowise — Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

EPSS 0.7%public exploitCVSS 9.4
critical.is priorityof 100
49
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 52.8.528 × 2010.6Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Flowise< 3.1.3–CNA

Scores by source

GitHub_M (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/FlowiseAI/Flowise/security/advisories/GHSA-3769-jgqc-cxm7refgithub.com/FlowiseAI/Flowise/pull/6306refgithub.com/FlowiseAI/Flowise/commit/3086cb7e323bb96c5a581d3232ef975b0d92183drefgithub.com/FlowiseAI/Flowise/releases/tag/[email protected]