CVE-2026-34156
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@nocobase/plugin-workflow-javascriptnpm | < 2.0.28 | 2.0.28 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- github.com/nocobase/nocobase/pull/8967nvdIssue TrackingPatchWEB
- github.com/nocobase/nocobase/security/advisories/GHSA-px3p-vgh9-m57cnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-px3p-vgh9-m57cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34156ghsaADVISORY
- github.com/nocobase/nocobase/releases/tag/v2.0.28nvdProductRelease NotesWEB
News mentions
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