Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: Dovecot: Denial of Service via IMAP ID command with excessive parameters (CVE-2026-42391)
* dovecot: Dovecot: Authentication bypass via incorrect OAuth2 token validation (CVE-2026-73208)
* dovecot: Dovecot: Denial of service via crafted email headers (CVE-2026-27852)
* dovecot: Dovecot: Denial of Service via truncated quoted argument in M
Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: Dovecot: Denial of Service via excessive IMAP bracing (CVE-2026-42006)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command (CVE-2025-59032)
* dovecot: denial of service via crafted message before authentication (CVE-2026-27858)
* dovecot: denial of service via specially crafted NOOP command (CVE-2026-27857)
For more details about the security issue(s), including the impac
Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command (CVE-2025-59032)
* dovecot: denial of service via crafted message before authentication (CVE-2026-27858)
* dovecot: denial of service via specially crafted NOOP command (CVE-2026-27857)
For more details about the security issue(s), including the impac
Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: using a large number of address headers may trigger a denial of service (CVE-2024-23184)
* dovecot: very large headers can cause resource exhaustion when parsing message (CVE-2024-23185)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s)
Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: Privilege escalation when similar master and non-master passdbs are used (CVE-2022-30550)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in th