CVE-2026-92944
vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-693 |
| Vendor | patriksimek |
| Product | vm2 |
| Published | Sep 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
patriksimek / vm2
3.10.2 < 3.11.7
References
github.com: https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v github.com: https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e github.com: https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd vulncheck.com: https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector
Credits
🔍 YMs0ra