CVE-2026-34156
NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- NocoBase 2.0.27 - VM Sandbox Escape2026-05-07 · local · multiple
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @nocobase/plugin-workflow-javascript | <= 2.0.27 | 2.0.28 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nocobase | Nocobase | before 2.0.28 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-px3p-vgh9-m57c
- https://github.com/nocobase/nocobase/security/advisories/GHSA-px3p-vgh9-m57c
- https://nvd.nist.gov/vuln/detail/CVE-2026-34156
- https://github.com/nocobase/nocobase/pull/8967
- https://github.com/nocobase/nocobase/releases/tag/v2.0.28