CVE-2026-92934 Details
Description
vm2 before 3.11.8 contains an incomplete fix for Error.cause sanitization that allows sandbox escape when revisited host-wrapped AggregateError objects are caught within a single exception handler traversal. Attackers can exploit cycle detection bypass in handleException to access unsanitized host proxies embedded in the errors array, enabling full remote code execution and process information disclosure from the sandbox.
A vulnerability in vm2 versions prior to 3.11.8 allows for sandbox escape and remote code execution. This issue arises from an incomplete fix in the Error.cause sanitization process, which fails to properly handle host-wrapped AggregateError objects when they are revisited within a single exception handler traversal. Exploitation of this vulnerability bypasses cycle detection in the handleException function, allowing access to unsanitized host proxies embedded in the errors array. As a result, attackers can execute arbitrary code on the host and disclose process information from the sandbox.
Users can upgrade to vm2 version 3.11.8 or later, where this vulnerability has been patched.
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-x965-fc75-jpqh | CISA-ADP | AdvisoryTechnical AnalysisVendor |
| https://github.com/patriksimek/vm2/security/advisories/GHSA-x965-fc75-jpqh | [email protected] | AdvisoryTechnical AnalysisVendor |
| https://www.vulncheck.com/advisories/vm2-before-3.11.8-sandbox-escape-rce-via-aggregateerror | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-693 | Protection Mechanism Failure | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vm2 | <= 3.11.7 (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] |