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Vulnerabilities

Vulnerability · CVE-2026-34156

NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions.

Published Mar 31, 2026 · catalog updated Jul 24, 2026 · NocoBase is an AI-powered

Check if you run it

No confirmed exploitation is on record for CVE-2026-34156. EPSS is 6.79%. Act only if a listed version of NocoBase is an AI-powered is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (NocoBase is an AI-powered).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
6.79%
Remediation
Advisory link
Affected products
cpe nocobase/nocobase

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe nocobase/nocobaseversion unspecified

How to fix CVE-2026-34156

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-34156. EPSS is 6.79%. Act only if a listed version of NocoBase is an AI-powered is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-913: Improper Control of Dynamically-Managed Code Resources. EPSS 6.79%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 31, 2026 · NIST NVD

    Detected

    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 Writable

  2. Jul 24, 2026 · NIST NVD

    Updated

    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 Writable

Sources

  • CVE.orgVulnerability recordCVE-2026-34156

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-34156

    30-day exploitation probability 6.8%

    first.org
  • NIST NVDVulnerability recordCVE-2026-34156

    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 W

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.