dovecot-2.4.4-1.fc43
- dovecot-2.4.4-1.fc43
- CVE-2026-27851: lib-var-expand: Safe filter marks all following pipelines safe.
- CVE-2026-33603: auth: CRAM-SHA-*-PLUS channel binding could be faked. MITM attacker with a certificate trusted by the client could have bypassed the requirement for channel binding.
- CVE-2026-40020: IMAP folders can be shared-spammed to everyone.
- CVE-2026-42006: An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incomplete.
- indexer-worker, quota-status, script-login, program-client-local: Root privileges are now dropped permanently before serving requests.
- indexer-worker: Default restart_request_count changed to 1 to work correctly after permanent root privilege drop.
- lmtp: Add back service_extra_groups=$SET:default_internal_group that was incorrectly removed in v2.4.3.
- master: inet_listener_reuse_port has been replaced by service_reuse_port. The new setting properly pre-creates all listener sockets at startup and assigns one unique socket per process. Using this allows evenly distributing incoming connections to login processes.