Critical severity · published Sep 19, 2026
CVE-2026-93985
OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE
9.9
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openpanel · Openpanel-dev
through 2.3.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93985
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-93985
vendor-advisory
https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-6f7h-cvp6-w9w5
third-party-advisory
https://www.vulncheck.com/advisories/openpanel-js-runtime-javascript-template-sandbox-escape-rce
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