{"action":"Upgrade dovecot to 1:2.3.19.1+dfsg1-2.1+deb12u2 or later.","affected":[{"fixed":"1:2.3.19.1+dfsg1-2.1+deb12u2","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:2.3.19.1+dfsg1-2.1+deb12u2"],"id":"tcs_01M5NRFYG4HRFRSR3XXWE3EY7X","modified_at":"2026-10-27T09:47:38.667032427Z","published_at":"2026-03-27T09:16:19.917Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-27857","https://security-tracker.debian.org/tracker/CVE-2026-27857"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-27857","url":"https://osv.dev/vulnerability/DEBIAN-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"}