{"action":"Upgrade ksmtp to 21.12.3-2 or later.","affected":[{"fixed":"21.12.3-2","introduced":"0"}],"component":"ksmtp","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["21.12.3-2"],"id":"tcs_01M5NFWWJ1DT5A6JS8WXZ9NBC6","modified_at":"2026-10-23T18:03:31.892534485Z","published_at":"2021-08-10T15:15:08.390Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-38373","https://security-tracker.debian.org/tracker/CVE-2021-38373"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-38373#Debian:13/ksmtp","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-38373"}],"summary":"In KDE KMail 19.12.3 (aka 5.13.3), the SMTP STARTTLS option is not honored (and cleartext messages are sent) unless \"Server requires authentication\" is checked."}