{"id":"CVE-2026-116811","aliases":[],"title":"OpenPanel before 3.0.0 Sandbox Escape RCE via Webhook JavaScript Template","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"Openpanel-dev","name":"openpanel","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"3.0.0","versionType":"semver"},{"version":"3.0.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-116811"}],"remediation":[],"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process.","severity":"high","score":8.7,"published":"2026-10-26T23:05:40.470Z","modified":"2026-10-26T23:05:40.470Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-mc99-9jf5-22cq","https://github.com/Openpanel-dev/openpanel/commit/42fc8623b5c5c30f0b89686451c0c5ab13046b81","https://www.vulncheck.com/advisories/openpanel-before-3.0.0-sandbox-escape-rce-via-webhook-javascript-template"],"sources":[{"name":"CVE","id":"CVE-2026-116811","modified":"2026-10-26T23:05:40.470Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-116811"}],"assessments":[{"source":"VulnCheck","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","score":8.7},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T04:15:31.644Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}