{"id":"CVE-2026-44007","aliases":["GHSA-8hg8-63c5-gwmx"],"url":"https://o3.security/vulnerability/CVE-2026-44007","summary":"vm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution","details":"vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.","published":"2026-05-13T17:33:19.799Z","modified":"2026-09-09T03:30:15.696906748Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"},"epss":{"score":0.0096,"percentile":0.58558,"asOf":"2026-08-15"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"vm2","fixedVersion":"3.11.1"}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/05/11"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44007.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:50850"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-44007"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44007.json"},{"type":"ADVISORY","url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44007"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2477198"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T03:30:15.696906748Z"}}