em-imap 0.5 and earlier use the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.
{
"severity": "HIGH",
"cwe_ids": [
"CWE-295"
],
"github_reviewed_at": "2021-05-20T22:25:15Z",
"github_reviewed": true,
"nvd_published_at": "2020-05-19T22:15:00Z"
}