Critical severity9.9GHSA Advisory· Published May 13, 2026· Updated Aug 6, 2026
CVE-2026-43999
CVE-2026-43999
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
vm2npm | >= 3.10.5, < 3.11.0 | 3.11.0 |
Affected products
3= 3.10.5+ 1 more
- (no CPE)range: = 3.10.5
- cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*range: <3.11.0
Patches
Vulnerability mechanics
References
7- github.com/patriksimek/vm2/security/advisories/GHSA-947f-4v7f-x2v8nvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-947f-4v7f-x2v8ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-43999ghsaADVISORY
- access.redhat.com/errata/RHSA-2026:50850nvd
- access.redhat.com/security/cve/CVE-2026-43999nvd
- bugzilla.redhat.com/show_bug.cginvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43999.jsonnvd
News mentions
1- vm2 Node.js Library Vulnerabilities Enable Sandbox Escape and Arbitrary Code ExecutionThe Hacker News · May 7, 2026