{"action":"Upgrade dovecot to 2.4.4-r0 or later.","affected":[{"fixed":"2.4.4-r0","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["2.4.4-r0"],"id":"tcs_01M5NFQ2NPKTEW3SPHM0NZVGK8","modified_at":"2026-10-01T02:17:49.274603917Z","published_at":"2026-05-12T14:17:03.687Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-40020","https://security.alpinelinux.org/vuln/CVE-2026-40020"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-40020","url":"https://osv.dev/vulnerability/ALPINE-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"}