What’s Vulnerable › Vulnerabilities

CVE-2026-92955: vm2 before 3.11.8 Sandbox Escape via NodeVM

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-09-17
• Weakness: CWE-913

Description

vm2 before 3.11.8 contains a sandbox escape vulnerability in NodeVM that allows attackers to access the host __proto__ getter/setter through console._stdout and console._stderr. Attackers can overwrite EventEmitter.prototype.emit and trigger process events to execute code with process context, bypassing code generation restrictions.

Affected products

• patriksimek vm2: before 3.11.8 — fixed in 3.11.8

How to fix

Upgrade to a fixed version: patriksimek vm2 3.11.8. Check the vendor advisory for mitigations.

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-88hf-g992-jg85
• https://www.vulncheck.com/advisories/vm2-before-3.11.8-sandbox-escape-via-nodevm
• https://github.com/patriksimek/vm2/security/advisories/GHSA-88hf-g992-jg85

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