CVE-2026-47683

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/patriksimek/vm2/commit/3ffb315512e634cf85c447375e85d6c83d00a4bd
https://github.com/patriksimek/vm2/releases/tag/3.11.6
https://github.com/patriksimek/vm2/security/advisories/GHSA-gmc2-2x9w-cgh9
https://github.com/patriksimek/vm2/security/advisories/GHSA-gmc2-2x9w-cgh9

Configurations

No configuration.

History

23 Oct 2026, 16:10

Type	Values Removed	Values Added
Summary		(es) vm2 es una vm/sandbox de código abierto para Node.js. Antes de la versión 3.11.6, la aplicación del límite bufferAllocLimit en lib/setup-sandbox.js no cubre Buffer.concat(list, totalLength) ni Buffer.from(arrayLike) con una longitud controlada por el atacante, lo que permite que el código de la sandbox realice grandes asignaciones síncronas de memoria externa del host que eluden el límite configurado y pueden agotar el proceso del host. Este problema está solucionado en la versión 3.11.6.

Information

Published : 2026-08-17 21:16

Updated : 2026-10-23 16:10

NVD link : CVE-2026-47683

Mitre link : CVE-2026-47683

CVE.ORG link : CVE-2026-47683

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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