CVE-2026-34156Critical· 9.9▾ AbyssalPoC availableNocoBase 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 …
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 54.5 · likelihood 7 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 3 sources. Availability, not in-the-wild use.
Exploit-prediction probability, daily snapshots since Jul 24.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
37%
Exploit-DB · 2 GitHub repos · Nuclei ×1 (last check)
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.
nocobase < 2.0.28Upgrade past the affected range:
nocobase 2.0.28Connected by shared product, vendor, weakness, or advisory.
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