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[ CVE-2026-92940 · Published 17 Sep 2026 ]

vm2 exposes host HTTPS credentials and TLS traffic through globalAgent

CVSS 10.0 EPSS <1%Fix available

[ Why it matters ]Priority signals

  • Critical severity: CVSS 10.0

[ Description ]Official description

vm2 versions 3.11.3 through 3.11.6 expose the host process's real https.globalAgent to sandboxed code when a NodeVM is explicitly configured to allow require('https'). The builtin loader wraps host modules in a read-only proxy, but method calls such as Agent.prototype.on() are forwarded to the underlying host object, so sandbox code can register a listener for the agent's 'free' event. When an unrelated host HTTPS request releases a pooled connection, the listener receives the live host request options and the host TLSSocket, allowing sandboxed code to read the host's Authorization header and private destination host/port, attach a data listener to the released socket and read subsequent host response bodies in plaintext, and issue attacker-chosen authenticated requests using the stolen credentials. The issue is fixed in 3.11.7.

[ Fixes ]Fixes and patches

  • vm2 3.11.7Fixed version · GitHub Advisories · npm package vm2: upgrade to 3.11.7 or later (affected >= 3.11.3, <= 3.11.6)

[ Packages ]Affected open-source packages

[ References ]References