{"action":"Upgrade dovecot to 1:2.3.19.1+dfsg1-2.1+deb12u6 or later.","affected":[{"fixed":"1:2.3.19.1+dfsg1-2.1+deb12u6","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:2.3.19.1+dfsg1-2.1+deb12u6"],"id":"tcs_01M5NRX3APWVS40403D7Q9SFEA","modified_at":"2026-10-27T09:47:35.334036777Z","published_at":"2026-05-12T14:17:03.687Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-40020","https://security-tracker.debian.org/tracker/CVE-2026-40020"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-40020","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-40020"}],"summary":"Attacker can use the IMAP SETACL command to inject the anyone permission to user's dovecot-acl file even if imap_acl_allow_anyone=no. This causes folders to be spammed to all users. The impact is limi"}