CVE-2026-92944vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-693
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
patriksimek vm2 patriksimek:vm2 (from the name) | from 3.10.2 before 3.11.7; 3.11.7 not affected | CNA record |
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3vvendor-advisory
- https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774epatch
- https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bdpatch
- https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protectorthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.