CVE-2026-92944 — vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector
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 Promi…
Published: 2026-09-17 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7