{"action":"Upgrade dovecot to 2.4.3-r0 or later.","affected":[{"introduced":"3.0.0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["2.4.3-r0"],"id":"tcs_01M5NFMKKEX8CJCWQAQ7JQ0G9N","modified_at":"2026-10-01T02:17:49.224905380Z","published_at":"2026-03-27T09:16:19.917Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-27857","https://security.alpinelinux.org/vuln/CVE-2026-27857"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-27857","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-27857"}],"summary":"Sending \"NOOP (((...)))\" command with 4000 parenthesis open+close results in ~1MB extra memory usage. Longer commands will result in client disconnection. This 1 MB can be left allocated for longer ti"}