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CVE-2026-47137

CRITICAL Exploitation: PoC
10.0
CVSS 3.1
Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.

Metadata

CVE ID
CVE-2026-47137
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-18 19:50 UTC
Published
2026-06-12 14:15 UTC
Last updated
2026-06-13 03:55 UTC
Primary CWE
CWE-913
CWE-913: Improper Control of Dynamically-Managed Code Resour…
Vendor / Product
patriksimek / vm2
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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
10.0 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References (5)
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