Sandbox Escape Vulnerability in OpenPanel Product by OpenPanel Dev
CVE-2026-116811

8.7HIGH

Key Information:

Vendor

Openpanel-dev

Status
Openpanel
Vendor
CVE Published:
26 October 2026

What is CVE-2026-116811?

OpenPanel, prior to version 3.0.0, is susceptible to a sandbox escape vulnerability within its js-runtime validator. This flaw permits a project member with write access to circumvent the AST allowlist by leveraging an aliasing technique on the Function constructor. By invoking payload.constructor.constructor locally, attackers can execute arbitrary code within the worker process, posing significant security threats.

Affected Version(s)

openpanel 0 < 3.0.0

openpanel 3.0.0

References

https://github.com/Openpanel-dev/openpanel/security/advis...
vendor-advisory
https://github.com/Openpanel-dev/openpanel/commit/42fc862...
patch
https://www.vulncheck.com/advisories/openpanel-before-3.0...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

kemrec
.