{"cve":"CVE-2026-92944","nvd":{"published":"2026-09-17T14:17:59.623","modified":"2026-09-19T03:17:18.580","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":9.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-693"],"references":["https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd","https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e","https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v","https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector","https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-92944","score":0.00841,"percentile":0.57903,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-27g9-p43v-cw3v","url":"https://osv.dev/vulnerability/GHSA-27g9-p43v-cw3v","summary":"vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector","modified":"2026-10-01T15:45:06.191193214Z","packages":[{"ecosystem":"npm","name":"vm2","purl":"pkg:npm/vm2","ranges":[">=3.10.2 <3.11.7"],"fixed":["3.11.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}