{"id":"CLSA-2026-1778573628","summary":"dovecot: Fix of 2 CVEs","details":"- CVE-2026-27855: use translated username in auth_cache_remove() to prevent OTP authentication replay attack\n- CVE-2026-27856: use timing-safe credential comparison in doveadm HTTP and TCP authentication paths","modified":"2026-05-27T11:17:24.914053279Z","published":"2026-05-12T08:13:53Z","upstream":["CVE-2026-27855","CVE-2026-27856"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1778573628.html"}],"affected":[{"package":{"name":"dovecot","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/dovecot?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.16-8.el9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1778573628.json"}},{"package":{"name":"dovecot-devel","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/dovecot-devel?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.16-8.el9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1778573628.json"}},{"package":{"name":"dovecot-mysql","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/dovecot-mysql?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.16-8.el9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1778573628.json"}},{"package":{"name":"dovecot-pgsql","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/dovecot-pgsql?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.16-8.el9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1778573628.json"}},{"package":{"name":"dovecot-pigeonhole","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/dovecot-pigeonhole?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.16-8.el9.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1778573628.json"}}],"schema_version":"1.7.5"}