Vulnerability intelligence

CVE-2026-43997

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.

CVSS Score

Critical

EPSS — Exploit Probability

1.0%

Riskier than 60% of all CVEs · checked 2026-09-09

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

unknown

Check vendor advisories

NVD entry