CVEvulnerability
CVE-2026-43999
9.9 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-05-13
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 9.9 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-829, CWE-863
Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, NodeVM's builtin allowlist can be bypassed when the module builtin is allowed (including via the '*' wildcard). The module builtin exposes Node's Module._load(), which loads any module by name directly in the host context, completely bypassing vm2's builtin restriction. This allows sandboxed code to load excluded builtins like child_process and achieve remote code execution. This vulnerability is fixed in 3.11.0.
Affected configurations
• vm2 project vm2 (< 3.11.0)
Related
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-947f-4v7f-x2v8 Exploit, Mitigation, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50850 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-43999 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2477196 bugzilla.redhat.com
- https://github.com/patriksimek/vm2/security/advisories/GHSA-947f-4v7f-x2v8 Exploit, Mitigation, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43999.json security.access.redhat.com