{"id":"CVE-2026-116811","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-116811","generatedAt":"2026-10-28T06:35:52.921Z","title":"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.","description":"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.","published":"2026-10-27T00:17:14.000Z","lastModified":"2026-10-27T00:17:15.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-94"],"affected":[],"epss":{"score":0.00494,"percentile":0.42185,"date":"2026-10-27","history":[{"date":"2026-10-27","score":0.00494,"percentile":0.42185}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-27T00:17:14.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-27T00:17:14.263Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046b81","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-mc99-9jf5-22cq","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/openpanel-before-3.0.0-sandbox-escape-rce-via-webhook-javascript-template","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-116811","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}