VULNERABILITY INTELLIGENCE

CVE-2026-43997

CVSS score10 CRITICAL
EPSS probability0.98%
CISA KEVNot currently listed
Published2026-05-13
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-94
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-653

Primary references