Improper Authorization in vm2 - #VU142649
Published: August 15, 2026
Vulnerability identifier: #VU142649
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information and modify host process state.
The vulnerability exists due to improper authorization in NodeVM builtin module handling when expanding the `builtin: [\'*\']` allowlist and exposing the `os` and `dns` modules. A remote attacker can execute sandboxed code that invokes `os` and `dns` APIs to disclose sensitive information and modify host process state.
The issue is exploitable in configurations that allow full builtins through the wildcard pattern without excluding `os` and `dns`.
Affected software
vm2
Remediation
Install security update from vendor's website.
vm2 - update to 3.11.6