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LLMHigh

CVE-2026-69254: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.…

Occurred
Aug 4, 2026
Published
Aug 4, 2026
Source
NVD CVE

Summary

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.

Tags

  • CVE
  • CVE-2026-69254
  • cvss:HIGH

Classification

Category confidence: 90%
Severity confidence: 95%

Rationale: CVE describes a critical security vulnerability in an LLM orchestration tool allowing arbitrary code execution.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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