CVE-2026-43997

CriticalCVSS 10.0/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-94CWE-653

Affected software

VendorProductVersions
patriksimekvm2< 3.11.0
Red HatRed Hat Ansible Automation Platform 2.1—
Red HatRed Hat Developer Hub—

References

Timeline

Published
May 13, 2026
Last modified
Oct 26, 2026
NVD status
Modified

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CVE-2026-43997: Critical severity, CVSS 10.0 | Vulnix