{"id":"CVE-2026-92944","title":"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","summary":"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 exploi…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-693"],"vendor":"patriksimek","product":"vm2","affected":["vm2 >= 3.10.2 < 3.11.7"],"published":"2026-09-17","updated":"2026-09-19","sourceUpdated":"2026-09-19T03:17:18.580","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92944","references":[{"url":"https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd","label":"disclosure@vulncheck.com"},{"url":"https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e","label":"disclosure@vulncheck.com"},{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector","label":"disclosure@vulncheck.com"},{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0058,"epssPercentile":0.46156,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-19T02:30:37.300948Z"},"ingestedAt":"2026-09-17T14:19:30.986Z","slug":"CVE-2026-92944","body":"## Overview\n\nvm2 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":207574,"id":"CVE-2026-92944","ts":1789786627265,"field":"exploit_available","old":"false","new":"true"}]}