CVE-2026-34156

9.9 CRITICAL
Published: March 31, 2026 Modified: April 07, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/nocobase/nocobase/pull/8967
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/nocobase/nocobase/releases/tag/v2.0.28
Source: security-advisories@github.com
Product Release Notes
https://github.com/nocobase/nocobase/security/advisories/GHSA-px3p-vgh9-m57c
Source: security-advisories@github.com
Exploit Mitigation Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.9 / 10.0
EPSS (Exploit Probability)
7.2%
92th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

nocobase