{"action":"Upgrade dovecot to 2.4.5-r0 or later.","affected":[{"fixed":"2.4.5-r0","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.24","exploited":false,"fixed_versions":["2.4.5-r0"],"id":"tcs_01M5NFNRQ4SE20J24R8QQ3D6PJ","modified_at":"2026-10-01T02:17:49.248431923Z","published_at":"2026-08-28T12:16:27.613Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-33604","https://security.alpinelinux.org/vuln/CVE-2026-33604"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-33604#Alpine:v3.24/dovecot","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-33604"}],"summary":"An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body to bypass the outbound protection that pr"}