CVE-2026-116811
OpenPanel before 3.0.0 Sandbox Escape RCE via Webhook JavaScript Template
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
OpenPanel before 3.0.0 contains a sandbox escape vulnerability in the js-runtime validator that allows a project member to bypass the AST allowlist by aliasing the Function constructor. Attackers with write access can read payload.constructor.constructor into a local and call it to run arbitrary code in the worker process.
| CWE | CWE-94 |
| Vendor | openpanel-dev |
| Product | openpanel |
| Published | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Openpanel-dev / openpanel
0 < 3.0.0
References
github.com: https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-mc99-9jf5-22cq github.com: https://github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046b81 vulncheck.com: https://www.vulncheck.com/advisories/openpanel-before-3.0.0-sandbox-escape-rce-via-webhook-javascript-template
Credits
🔍 kemrec