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CVE-2026-47210

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, a sandbox escape vulnerability in vm2 allows arbitrary code execution in the host process when untrusted code is executed with async support on runtimes exposing WebAssembly JSPI (WebAssembly.promising / WebAssembly.Suspending). In the tested configuration, a JSPI-backed Promise can reach Promise.prototype.finally() in a way that bypasses the expected Promise-species hardening and exposes a host-originated rejection object to attacker-controlled species logic, breaking the sandbox boundary. This issue has been patched in version 3.11.4.

Metadata

CVE ID
CVE-2026-47210
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-18 22:25 UTC
Published
2026-06-12 14:17 UTC
Last updated
2026-06-13 03:56 UTC
Primary CWE
CWE-913
CWE-913: Improper Control of Dynamically-Managed Code Resour…
Vendor / Product
patriksimek / vm2
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
patriksimek vm2 — < 3.11.4
Weakness (CWE)
CWESourceDescription
CWE-913 cna CWE-913: Improper Control of Dynamically-Managed Code Resources
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References (3)
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