{"id":"CVE-2026-92944","summary":"vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector","details":"vm2 versions 3.10.2 through 3.11.6 contain a sandbox escape vulnerability on Node.js 26 where Promise.prototype.finally() bypasses vm2's wrapper protections due to a stale PromiseThenLookupChain protector in V8 14.6. Attackers can exploit this by creating an async function that returns a Promise with an attacker-controlled constructor Symbol.species, allowing them to reach the host Function constructor and process object for arbitrary code execution.","aliases":["GHSA-27g9-p43v-cw3v"],"modified":"2026-09-20T11:30:35.131574269Z","published":"2026-09-17T13:46:06.201Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92944.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-693"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92944.json"},{"type":"ADVISORY","url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92944"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector"},{"type":"FIX","url":"https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd"},{"type":"FIX","url":"https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/patriksimek/vm2","events":[{"introduced":"4b009c2d4b1131c01810c1205e641d614c322a29"},{"fixed":"0c5b63a228c0af88d4a0d364ab0b90df278d710e"}],"database_specific":{"extracted_events":[{"introduced":"3.10.2"},{"fixed":"3.11.7"},{"fixed":"3.11.6"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["3.11.6","v3.11.5","v3.11.4","v3.11.3","v3.11.2","v3.11.1","v3.11.0","v3.10.5","v3.10.4","v3.10.3","v3.10.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92944.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}