The package ua-parser-js before 0.7.23 are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info).
{ "cwe_ids": [ "CWE-400" ], "severity": "HIGH", "nvd_published_at": "2020-12-11T14:15:00Z", "github_reviewed_at": "2021-04-08T21:32:22Z", "github_reviewed": true }