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OpenAdvisories
Critical · 9.9 CVE-2026-93985 EUVD-2026-83590GHSA-rqpr-2wvr-29pf

OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE

Published Sep 19, 2026 · Updated Oct 2, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
Openpanel-dev openpanel ≤ 2.3.0 —

References