CVE-2026-47137
vm2: GHSA-8hg8-63c5-gwmx patch bypass: nesting:true without explicit require still allows full RCE
En bref
- Source
- NVD
- EPSS
- EPSS 0.38 % · centile 32 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Deferred
Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.
Faiblesses (CWE)
- CWE-913 — Contrôle incorrect de ressources de code gérées dynamiquement
Références
- https://github.com/patriksimek/vm2/security/advisories/GHSA-m4wx-m65x-ghrr
- https://github.com/patriksimek/vm2/commit/01a7552add345d5a6862623884e6b79a85bf0568
- https://github.com/patriksimek/vm2/commit/86ab819f202c3a8dad88cef5705f2e416c5188d7
- https://github.com/advisories/GHSA-g644-9gfx-q4q4
- https://github.com/patriksimek/vm2/releases/tag/v3.11.4
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
Avis
- GHSA-m4wx-m65x-ghrr — vm2 has a CVE-2023-37903 patch bypass: nesting:true without explicit require still allows full RCE
Références européennes
- ENISA EUVD · EUVD-2026-36443
- GCVE · GCVE-0-2026-47137
Produits affectés
| Produit | Versions |
|---|---|
| patriksimek · vm2 | affected < 3.11.4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |