CVE-2026-92940 Details
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.
A vulnerability in vm2 versions 3.11.3 through 3.11.6 allows sandboxed code to access the host process's real https.globalAgent when the NodeVM is configured to require https. Although the built-in loader wraps host modules in a read-only proxy, method calls can still modify the host object. This flaw enables sandboxed code to listen for the 'free' event on the agent, which is emitted when a host HTTPS request releases a pooled connection. As a result, the listener can access live host request options and the associated TLSSocket, exposing sensitive information such as the Authorization header and private destination host/port. Additionally, the sandboxed code can read subsequent host response bodies in plaintext and make authenticated requests using the stolen credentials.
Users should upgrade to vm2 version 3.11.7 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 17, 2026CISA-ADP
Assessed Sep 17, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/patriksimek/vm2/security/advisories/GHSA-h85j-hv3c-qfgq | [email protected] | AdvisoryExploitRemedyVendor |
| https://www.vulncheck.com/advisories/vm2-3.11.3-through-3.11.6-https-credential-exposure-via-globalagent | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-668 | Exposure of Resource to Wrong Sphere | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vm2 | >= 3.11.3, <= 3.11.6 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 17, 2026 | CVE Modified | CISA-ADP |
| Sep 17, 2026 | New CVE Received | [email protected] |