{"id":"CLEANSTART-2024-ER96817","summary":"If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sen...","details":"Security vulnerability affects the thunderbird package. If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection.","modified":"2026-10-31T16:00:19.154004509Z","published":"2026-10-31T14:18:41.303832Z","upstream":["CVE-2020-12398"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-ER96817.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2020-12398"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12398"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/thunderbird"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"68.9.0-r0"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-ER96817.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}