{"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_01M5NFMJNNV5A2QZVFRXP9D3R2","modified_at":"2026-10-01T02:17:49.224058986Z","published_at":"2026-08-28T12:16:27.330Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-27852","https://security.alpinelinux.org/vuln/CVE-2026-27852"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-27852#Alpine:v3.24/dovecot","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-27852"}],"summary":"An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is la"}