> CVE-2026-47683 [HIGH]

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PUBLISHED
2026-08-17 21:16
MODIFIED
2026-08-17 21:16
CVSS_SCORE V3
8.7
EPSS (Prob. Exploit)
0.54%
Top 55.5%
DATA SOURCES:
NVD đź”— 2026-08-17 CWE MITRE đź”— 2026-09-01 FIRST EPSS đź”— 2026-10-25 OSV đź”— 2026-08-22

> DESCRIPTION

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, the bufferAllocLimit enforcement in lib/setup-sandbox.js does not cover Buffer.concat(list, totalLength) or Buffer.from(arrayLike) with an attacker-controlled length, allowing sandbox code to perform large synchronous host external-memory allocations that bypass the configured cap and can exhaust the host process. This issue is fixed in version 3.11.6.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-770

> CWE DETAILED DESCRIPTIONS

CWE-770: Allocation of Resources Without Limits or Throttling - The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Ansible plug-ins for Red Hat Developer Hub Product Release Update
Updated images are now available for Red Hat Ansible Automation Platform 2.2, which include new features, bug fixes, and enhancements for Red Hat Ansible Automation Platform integration with Red Hat D...
Red Hat Security Advisory: Ansible plug-ins for Red Hat Developer Hub Product Release Update
Updated images are now available for Red Hat Ansible Automation Platform 2.1, which include new features, bug fixes, and enhancements for Red Hat Ansible Automation Platform integration with Red Hat D...
Red Hat Security Advisory: Red Hat Developer Hub 1.10.5 Plugin Catalog GA plugins release.
Red Hat Developer Hub 1.10.5 Plugin Catalog GA plugins release.
Red Hat Security Advisory: Red Hat Developer Hub 1.10.5 release.
Red Hat Developer Hub 1.10.5 has been released.
Red Hat Security Advisory: Ansible automation portal Red Hat Enterprise Linux Images
Updated images are now available for Red Hat Ansible Automation Platform 2.2, which include new features, bug fixes, and enhancements for the Red Hat Ansible Automation Portal bootable container image...

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

vm2: bufferAllocLimit cap bypassed by Buffer.concat and Buffer.from arrayLike

AFFECTED PACKAGES:
Unknown / Unknown
32 versions affected
ALIASES:
GHSA-gmc2-2x9w-cgh9

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/08/2026 21:16
Source: NVD
đź“Š ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-770: Allocation of Resources Without Limits or Throttling - The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the ...
Total des modifications: 1 Dernière mise à jour: 1 month ago

> REFERENCES

https://github.com/patriksimek/vm2/commit/3ffb315512e634cf85c447375e85d6c83d00a4...
https://github.com/patriksimek/vm2/releases/tag/3.11.6
https://github.com/patriksimek/vm2/security/advisories/GHSA-gmc2-2x9w-cgh9
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