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CVE Vulnerability Details :
CVE-2026-47210
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-12 Jun, 2026 | 14:17
Updated At-12 Jun, 2026 | 16:03
Rejected At-
▼CVE Numbering Authority (CNA)
vm2 sandbox escape via JSPI-backed Promise `.finally()` species bypass

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.

Affected Products
Vendor
patriksimek
Product
vm2
Versions
Affected
  • < 3.11.4
Problem Types
TypeCWE IDDescription
CWECWE-913CWE-913: Improper Control of Dynamically-Managed Code Resources
Type: CWE
CWE ID: CWE-913
Description: CWE-913: Improper Control of Dynamically-Managed Code Resources
Metrics
VersionBase scoreBase severityVector
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q
x_refsource_CONFIRM
https://github.com/patriksimek/vm2/commit/6915fa4d9bcebd47b9a4f39a1adc1aa94ef6ffc6
x_refsource_MISC
https://github.com/patriksimek/vm2/releases/tag/v3.11.4
x_refsource_MISC
Hyperlink: https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/patriksimek/vm2/commit/6915fa4d9bcebd47b9a4f39a1adc1aa94ef6ffc6
Resource:
x_refsource_MISC
Hyperlink: https://github.com/patriksimek/vm2/releases/tag/v3.11.4
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q
exploit
Hyperlink: https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q
Resource:
exploit
Details not found