Information disclosure in Patriksimek Vm2

CVE-2026-92960

vm2 before 3.11.6 fails to restrict access to os and dns builtins under the builtin: ['*'] configuration, allowing sandbox code to read host process identity and network topology. Attackers can invoke dns.setServers() to hijack the host process DNS resolver globally, redirecting all subsequent host DNS queries through an attacker-controlled resolver.

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-92960?
CVE-2026-92960 is a critical-severity vulnerability in Patriksimek Vm2, classified under Information Disclosure. CVSS score: 10.0/10. Published 2026-09-17.
How severe is CVE-2026-92960?
Critical severity. CVSS v3 base score is 10.0 out of 10.