PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-47141 patriksimek CVE debrief

CVE-2026-47141 is a vulnerability in vm2, an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM exposes some process-wide observability builtins when they are allowed through require.builtin. The diagnostics_channel, async_hooks, and perf_hooks builtins are not blocked by the dangerous builtin denylist. These modules are process-wide, not sandbox-local. Sandboxed code can use them to observe host application data across the vm2 boundary. This issue has been patched in version 3.11.4.

Vendor
patriksimek
Product
vm2
CVSS
MEDIUM 6.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-13
Advisory published
2026-06-12
Advisory updated
2026-06-13

Who should care

Users of vm2, an open source vm/sandbox for Node.js, should be aware of this vulnerability if they use versions prior to 3.11.4.

Technical summary

CVE-2026-47141 has a CVSS score of 6.9 and is classified as MEDIUM severity. The vulnerability allows sandboxed code to access process-wide observability builtins, potentially exposing host application data.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update vm2 to version 3.11.4 or later.
  • Review and restrict the use of require.builtin in sandboxed environments.

Evidence notes

CVE-2026-47141 was published on 2026-06-12T15:16:28.537Z and modified on 2026-06-13T04:17:30.950Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47141 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47141

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47141 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47141

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.