{"cve":"CVE-2026-100722","nvd":{"published":"2026-09-27T02:17:18.817","modified":"2026-09-28T14:17:09.373","status":"Deferred","description":"vm2 before 3.12.2 does not apply host-side Promise rejection handling in the sandbox-to-host construct trap. In BaseHandler, the apply trap calls markHostPromiseHandled() on the returned value, but the adjacent construct path returns the result of Reflect.construct without the same sanitization. If an embedder exposes a constructable host function whose constructor returns a native rejected Promise, an untrusted script executed via VM.run can invoke it with `new` and ignore the result; the rejected host Promise crosses the bridge unhandled and, under Node's strict unhandled-rejection policy, is promoted to an uncaught exception that terminates the host process.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","score":8.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","score":6.8},"cwes":["CWE-248"],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-2v2p-6j97-cjg9","https://www.vulncheck.com/advisories/vm2-before-3.12.2-host-process-termination-via-construct-trap","https://github.com/patriksimek/vm2/security/advisories/GHSA-2v2p-6j97-cjg9"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:48.555445741+00:00"},"epss":{"cve":"CVE-2026-100722","score":0.00315,"percentile":0.24419,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2v2p-6j97-cjg9","url":"https://osv.dev/vulnerability/GHSA-2v2p-6j97-cjg9","summary":"vm2: Host Promise rejection from an exposed constructor can terminate the vm2 host process","modified":"2026-10-05T23:30:04.641523138Z","packages":[{"ecosystem":"npm","name":"vm2","purl":"pkg:npm/vm2","ranges":["<3.12.2"],"fixed":["3.12.2"]}]}],"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."]}