---
id: CVE-2026-93985
title: >-
  OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in
  the JavaScript webhook template validator that fails to block computed member
  access to constructor chains
summary: >-
  OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in
  the JavaScript webhook template validator that fails to block computed member
  access to constructor chains. Attackers with project write access can create
  webh…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: Openpanel-dev
product: openpanel
affected:
  - openpanel <= 2.3.0
published: '2026-09-19'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T15:17:13.063'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93985'
references:
  - url: >-
      https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-6f7h-cvp6-w9w5
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/openpanel-js-runtime-javascript-template-sandbox-escape-rce
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-6f7h-cvp6-w9w5
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-21T15:32:34.101291Z'
epss: 0.00666
epssPercentile: 0.51629
ingestedAt: '2026-09-19T12:02:33.562Z'
---

## Overview

OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in the JavaScript webhook template validator that fails to block computed member access to constructor chains. Attackers with project write access can create webhook templates using computed property notation to access Function constructor and execute arbitrary code in the worker process.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.