{"id":"CVE-2020-13163","details":"em-imap 0.5 uses 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.","aliases":["GHSA-4f68-49qq-h392"],"modified":"2026-03-17T22:49:48.506771Z","published":"2020-05-19T22:15:12.090Z","references":[{"type":"EVIDENCE","url":"https://github.com/ConradIrwin/em-imap/issues/25"},{"type":"EVIDENCE","url":"https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/conradirwin/em-imap","events":[{"introduced":"0"},{"last_affected":"c46cda5c04b16abe17706121e1489304821d942f"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"0.5"}]}}],"versions":["v0.5"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13163.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}