Vulnerability 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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-h85j-hv3c-qfgq
- https://www.vulncheck.com/advisories/vm2-3.11.3-through-3.11.6-https-credential-
FAQ
What is CVE-2026-92940?
CVE-2026-92940 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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 mo...
How severe is CVE-2026-92940?
CVE-2026-92940 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-92940?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.