math.js before 3.17.0 had an issue where private properties such as a constructor could be replaced by using unicode characters when creating an object.
Upgrade to version 3.17.0 or later.
{ "nvd_published_at": null, "cwe_ids": [ "CWE-88" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2020-06-16T21:50:06Z" }