{"id":"GHSA-hwr5-cm8v-c76q","title":"Duplicate Advisory: vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector","summary":"Duplicate Advisory: vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector","severity":"critical","cvss":9.8,"cwe":["CWE-693"],"vendor":"vm2","product":"vm2","ecosystem":"npm","affected":["vm2 >= 3.10.2, <= 3.11.6"],"published":"2026-09-17","updated":"2026-10-01","sourceUpdated":"2026-10-01T15:27:58Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-hwr5-cm8v-c76q","references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92944"},{"url":"https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd"},{"url":"https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e"},{"url":"https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector"},{"url":"https://github.com/advisories/GHSA-hwr5-cm8v-c76q"}],"tags":["ghsa","npm"],"ingestedAt":"2026-10-01T15:48:17.827Z","slug":"GHSA-hwr5-cm8v-c76q","body":"## Overview\n\n## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-27g9-p43v-cw3v. This link is maintained to preserve external references.\n\n## Original Description\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## Affected packages\n\n- `vm2 >= 3.10.2, <= 3.11.6`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}