What is CVE-2026-116811?

CVE-2026-116811 is a high-severity vulnerability in Openpanel-Dev Openpanel, classified under Code Injection. CVSS score: 8.8/10. Published 2026-10-27.

How severe is CVE-2026-116811?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Openpanel-Dev Openpanel

CVE-2026-116811

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.

Vulnerability class: RCE (Remote Code Execution)

Published 2026-10-27 · last modified 2026-10-27.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Openpanel-Dev Openpanel

Weakness classification (CWE)

CWE-94 — Code Injection

References

github.com/Openpanel-dev/openpanel/security/advisories/GHSA-mc99-9jf5-22cq (vendor-advisory)
github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046… (patch)
www.vulncheck.com/advisories/openpanel-before-3.0.0-sandbox-escape-rce-via-webh… (third-party-advisory)

Frequently asked questions

What is CVE-2026-116811?: CVE-2026-116811 is a high-severity vulnerability in Openpanel-Dev Openpanel, classified under Code Injection. CVSS score: 8.8/10. Published 2026-10-27.
How severe is CVE-2026-116811?: High severity. CVSS v3 base score is 8.8 out of 10.