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.
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LLM-synthesized narrative grounded in this CVE's description and references.
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
2Patches
Vulnerability mechanics
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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