GHSA-mgj2-jqjq-q8gg
Suggest an improvement- Source
- https://github.com/advisories/GHSA-mgj2-jqjq-q8gg
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-mgj2-jqjq-q8gg/GHSA-mgj2-jqjq-q8gg.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-mgj2-jqjq-q8gg
- Withdrawn
- 2026-10-05T22:45:31Z
- Published
- 2026-09-17T15:32:16Z
- Modified
- 2026-10-05T23:00:05Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- 9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- Duplicate Advisory: vm2: Host-returned Promise rejection can bypass vm2's unhandled-rejection hardening and terminate the host process
- Details
-
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-gjq8-xm47-88rc. This link is maintained to preserve external references.
Original Description
vm2 is a sandbox library for running untrusted JavaScript in Node.js. In versions >= 3.10.0 and <= 3.11.7, Promises returned from the host realm into the sandbox are not marked as handled at the bridge boundary; only Promises created inside the sandbox are wrapped with a rejection-swallowing handler (lib/setup-sandbox.js), and the bridge only installs host-side rejection sanitizers when sandbox code calls .then/.catch/.finally. As a result, code running in the sandbox can invoke a host function that returns a rejected Promise (for example events.once() exposed via the NodeVM events builtin, or any embedder-provided Promise-returning API) and simply ignore the return value, leaving the host Promise unhandled so that Node.js's default unhandled-rejection behavior terminates the host process. This is an incomplete fix of GHSA-hw58-p9xv-2mjh. The issue is fixed in version 3.11.8.
- Database specific
{ "cwe_ids": [ "CWE-248" ], "github_reviewed": true, "github_reviewed_at": "2026-10-05T22:45:31Z", "nvd_published_at": "2026-09-17T14:18:01Z", "severity": "CRITICAL" }- References
Affected packages
npm / vm2
Package
- Name
- vm2
- View open source insights on deps.dev
- Purl
- pkg:npm/vm2