Critical severity10.0NVD Advisory· Published Sep 17, 2026· Updated Sep 17, 2026
CVE-2026-92955
CVE-2026-92955
Description
vm2 before 3.11.8 contains a sandbox escape vulnerability in NodeVM that allows attackers to access the host __proto__ getter/setter through console._stdout and console._stderr. Attackers can overwrite EventEmitter.prototype.emit and trigger process events to execute code with process context, bypassing code generation restrictions.
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 | < 3.11.8 | 3.11.8 |
Affected products
1- Range: <3.11.8
Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-88hf-g992-jg85ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-92955ghsaADVISORY
- github.com/patriksimek/vm2/blob/v3.11.7/lib/bridge.jsghsaWEB
- github.com/patriksimek/vm2/blob/v3.11.7/lib/setup-node-sandbox.jsghsaWEB
- github.com/patriksimek/vm2/commit/22a43704c04b66823b4064b8a16fe1ad54ad0290ghsaWEB
- github.com/patriksimek/vm2/releases/tag/v3.11.8ghsaWEB
- github.com/patriksimek/vm2/security/advisories/GHSA-88hf-g992-jg85nvdWEB
- www.vulncheck.com/advisories/vm2-before-3.11.8-sandbox-escape-via-nodevmnvdWEB
News mentions
1- vm2 npm Package: 25 Critical Sandbox Escape Vulnerabilities Disclosed TogetherVypr Intelligence · Sep 18, 2026