What’s Vulnerable › Vulnerabilities

CVE-2026-44009: vm2: Sandbox Breakout Through Null Proto Exception

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-13 · updated 2026-10-26
• Weakness: CWE-668

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, This vulnerability is fixed in 3.11.2.

Affected products

• patriksimek vm2: before 3.11.2 — fixed in 3.11.2

How to fix

Upgrade to a fixed version: patriksimek vm2 3.11.2. Check the vendor advisory for mitigations.

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-9vg3-4rfj-wgcm
• https://access.redhat.com/errata/RHSA-2026:50850
• https://access.redhat.com/security/cve/CVE-2026-44009
• https://bugzilla.redhat.com/show_bug.cgi?id=2477185
• https://github.com/patriksimek/vm2/security/advisories/GHSA-9vg3-4rfj-wgcm
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44009.json

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