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critical·Product Based Web Vulnerabilities·Updated Mar 31, 2026

NocoBase - VM Sandbox Escape to Remote Code Execution

Est. Time~10 seconds
Scan TypeGroup Scan
Targetsdomain, subdomain, ipv4
CostFree
3.3k
Times Used
continuous scan runs
0
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2026-34156
10.0
CVSScritical
Exploitable remotely over the internet · low-privilege account sufficient.

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.

Attack Vector
Network
Privileges Req.
Low
User Interaction
None
Affected
nocobaseby nocobase
< 2.0.28
Updated Sep 9, 2026View on NVD →

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NocoBase - VM Sandbox Escape to Remote Code Execution CVE-2026-34156 Scanner | S4E