CVE-2026-44008

vm2: Snabox breakout via `neutralizeArraySpeciesBatch`

En bref

Sévérité: CRITICAL 9.8
EPSS: EPSS 0.85 % · centile 58 (2026-10-27)
État: PUBLISHED
Publiée: 2026-05-13
Mise à jour: 2026-09-07
Attribuée par: GitHub_M
Statut NVD: Modified

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, the new method neutralizeArraySpeciesBatch works with objects from the other side but can call into this side via getter on the array prototype exposing objects of the wrong side into the sandbox. This can be used to get host objects and get the host Function object. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.2.

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	GitHub_M
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	redhat-SADP
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

Faiblesses (CWE)

Avis

GHSA-9qj6-qjgg-37qq — vm2 has sandbox breakout via `neutralizeArraySpeciesBatch`

Références européennes

ENISA EUVD · EUVD-2026-30078
GCVE · GCVE-0-2026-44008

Configurations affectées (CPE NVD)

cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:* < 3.11.2

Produits affectés

Produit	Versions
patriksimek · vm2	affected < 3.11.2

Références

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