undefsafe before 2.0.3 is vulnerable to Prototype Pollution. The 'a' function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
{
"severity": "MODERATE",
"github_reviewed_at": "2021-04-07T21:18:46Z",
"nvd_published_at": "2020-02-18T16:15:00Z",
"cwe_ids": [
"CWE-74"
],
"github_reviewed": true
}