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 58% of all CVEs

Exploitation

Not in CISA KEV

No federal exploitation record

Remediation

unknown

Check vendor advisories

NVD entry

1 article across 1 outlet · first covered May 7, 2026 · latest May 7, 2026

Coverage timeline

Critical vm2 Node.js flaws expose systems to sandbox escapes
thehackernews.com · May 7, 2026