cvedb.io
CVE-2026-34156
CRITICAL · CVSS 9.9
EPSS exploitation probability: 0%
Published 2026-03-31T14:16:12.170 · Last modified 2026-06-17T10:38:35.093

Summary

NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions. Prior to version 2.0.28, NocoBase's Workflow Script Node executes user-supplied JavaScript inside a Node.js vm sandbox with a custom require allowlist (controlled by WORKFLOW_SCRIPT_MODULES env var). However, the console object passed into the sandbox context exposes host-realm WritableWorkerStdio stream objects via console._stdout and console._stderr. An authenticated attacker can traverse the prototype chain to escape the sandbox and achieve Remote Code Execution as root. This issue has been patched in version 2.0.28.

Affected products

nocobase — nocobase

Does this affect you?

Add your gear to cvedb and we'll alert you only when nocobase ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.