{"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_01M5NFQZW8NE38SGC7Z5JSV5SV","modified_at":"2026-10-01T02:17:49.291474106Z","published_at":"2026-08-28T12:16:29.503Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-42391","https://security.alpinelinux.org/vuln/CVE-2026-42391"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-42391#Alpine:v3.24/dovecot","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-42391"}],"summary":"An unauthenticated attacker can send an IMAP ID command with a very large number of parameters before logging in, which causes memory and CPU usage to grow disproportionately. The login process can be"}