CVE-2026-92955 (CVSS 10)

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.

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CVSS v3.1 Score

10.0

CRITICAL

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

Weakness Type (CWE)

CWE-913 CWE-913

References

Other 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

Frequently Asked Questions

What is CVE-2026-92955? +

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. It has a CVSS v3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2026-92955? +

CVE-2026-92955 has a CVSS v3.1 score of 10.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

How do I check if I'm vulnerable to CVE-2026-92955? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-92955