CVE-2026-93985

OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE

Published Sep 19, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description OpenPanel js-runtime through commit bad75bdd 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. 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.
Title OpenPanel js-runtime JavaScript Template Sandbox Escape RCE OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE
CPEs cpe:2.3:a:openpanel:openpanel:-:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description OpenPanel js-runtime through commit bad75bdd 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.
Title OpenPanel js-runtime JavaScript Template Sandbox Escape RCE
First Time appeared Openpanel
Openpanel openpanel
Weaknesses CWE-94
CPEs cpe:2.3:a:openpanel:openpanel:-:*:*:*:*:*:*:*
Vendors & Products Openpanel
Openpanel openpanel
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 2, 2026, 2:00 PM
Reserved
Sep 19, 2026, 10:55 AM
Status
Deferred
Published
Sep 19, 2026, 12:16 PM
Modified
Oct 2, 2026, 3:17 PM