CVE-2026-44007

Summary

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.

Affected Software

Weaknesses

• CWE-284: CWE-284: Improper Access Control

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/05/05/11

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

vm2: vm2: Arbitrary code execution via nested NodeVM bypass

Additional References

• https://access.redhat.com/security/cve/CVE-2026-44007
• https://bugzilla.redhat.com/show_bug.cgi?id=2477198
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44007.json

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx

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