CVE-2026-43999vm2 is an open source vm/sandbox for Node.js.
Updated under an hour ago ()
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It affects vm2_project vm2. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.9 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-863, CWE-829
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Sep 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
vm2_project vm2 vm2_project:vm2 | before 3.11.0 | NVD |
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-947f-4v7f-x2v8exploit, mitigation, vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-43999
- https://bugzilla.redhat.com/show_bug.cgi?id=2477196
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43999.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.