CVE-2026-93985CWE-94code-injection

CVE-2026-93985

Critical · published September 19, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
51.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
9.4 · 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
EPSS
0.00666 · 51.2th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-09-19T16:16Z
References (3)
https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-6f7h-cvp6-w9w5 · [email protected]https://www.vulncheck.com/advisories/openpanel-js-runtime-javascript-template-sandbox-escape-rce · [email protected]https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-6f7h-cvp6-w9w5 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 21 SEP 03:37Z
    EPSS moved — → 0%
    epss
  • 19 SEP 11:53Z
    OpenPanel js-runtime JavaScript Template Sandbox Escape RCE
    cvelistv5