Is CVE-2026-47139 actively exploited?

No active exploitation of CVE-2026-47139 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-47139 be exploited remotely?

Yes. CVE-2026-47139 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-47139?

CVE-2026-47139 has a CVSS score of 8.6 (HIGH).

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HIGH

CVE-2026-47139

CWE-693Published: June 12, 2026· Updated: Jun 17, 2026

8.6

CVSS v3.1

EPSS:0.49%probability of exploitation in 30 daysPercentile:38.2th

Official Description

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM supports excluding public network builtins from the wildcard builtin option. With this configuration direct access to http, https, http2, net, dgram, tls, dns, and dns/promises is blocked. However, Node.js also exposes underscored internal HTTP builtins such as _http_client and _http_server. These are not blocked when the public modules are excluded. Sandboxed code can use these internal builtins to make outbound HTTP requests and open listening HTTP sockets even though the public network modules are denied. This issue has been patched in version 3.11.4.

NVD Source

Technical Analysis

CVE-2026-47139 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 8.6.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.