{"action":"Upgrade dovecot to 1:2.4.5+dfsg1-1 or later.","affected":[{"fixed":"1:2.4.5+dfsg1-1","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:2.4.5+dfsg1-1"],"id":"tcs_01M5NRFX3MDMGRZWSNVPDPPTV0","modified_at":"2026-10-01T03:03:09.103087058Z","published_at":"2026-08-28T12:16:27.330Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-27852","https://security-tracker.debian.org/tracker/CVE-2026-27852"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-27852#Debian:14/dovecot","url":"https://osv.dev/vulnerability/DEBIAN-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"}