What’s Vulnerable › Vulnerabilities

CVE-2026-69254: Flowise: RCE via NodeVM Sandbox Escape in executeJavaScriptCode() nodeVMOptions Override

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-08-04 · updated 2026-10-23
• Weakness: CWE-94

Description

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 products

• FlowiseAI Flowise: before 3.1.3 — fixed in 3.1.3

How to fix

Upgrade to a fixed version: FlowiseAI Flowise 3.1.3. Check the vendor advisory for mitigations.

References

• https://github.com/FlowiseAI/Flowise/commit/3086cb7e323bb96c5a581d3232ef975b0d92183d
• https://github.com/FlowiseAI/Flowise/pull/6306
• https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3769-jgqc-cxm7
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3769-jgqc-cxm7

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