SB2026050492 - Improper access control in vm2

Description

This security bulletin contains information about 1 vulnerability.

1) Improper access control (CVE-ID: N/A)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary OS commands on the host.

The vulnerability exists due to improper access control in the NodeVM module resolver when processing sandboxed code in a NodeVM configured with nesting: true. A remote privileged user can require the vm2 package from the sandbox and create a new inner NodeVM with attacker-controlled require settings to execute arbitrary OS commands on the host.

Exploitation requires the host to run untrusted or user-supplied code inside a NodeVM with nesting: true.

Remediation

Install update from vendor's website.

References

• https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx
• https://github.com/patriksimek/vm2/commit/2353ce60