CLSA-2026-1778250885 dovecot: Fix of CVE-2026-27857

CVE-2026-27857: imap-login: limit IMAP parser open lists to prevent excessive memory usage...

CLSA-2026-1778238067 dovecot: Fix of CVE-2026-27857

CVE-2026-27857: fix excessive memory usage from many '' in IMAP commands...

CLSA-2026-1778220630 dovecot: Fix of 3 CVEs

CVE-2026-27855: fix OTP authentication replay attack via auth cache - CVE-2026-27856: fix doveadm credential timing oracle - CVE-2026-27857: fix excessive memory usage from deeply nested IMAP command lists pre-auth ID command...

MiracleLinux 9 : dovecot-2.3.16-15.el9_7.1 (AXSA:2026-567:01)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-567:01 advisory. dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command CVE-2025-59032 dovecot: denial of service via craft...

CLSA-2026-1778173027 dovecot: Fix of CVE-2026-27858

CVE-2026-27858: fix unbounded memory allocation in managesieve-login when AUTHENTICATE initial response literal size is excessively large...

CLSA-2026-1778172123 dovecot: Fix of CVE-2026-27858

CVE-2026-27858: fix unbounded memory allocation in managesieve-login when AUTHENTICATE initial response literal size is excessively large...

dovecot security update

An update is available for dovecot. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Dovecot is an IMAP server for Linux and other UNIX-like systems, written...

RLSA-2026:13857 Important: dovecot security update

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 Fixes: doveco...

dovecot security update

An update is available for dovecot. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Dovecot is an IMAP server for Linux and other UNIX-like systems, written...

RLSA-2026:13830 Important: dovecot security update

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 Fixes: doveco...

[SECURITY] Fedora 43 Update: dovecot-2.4.3-2.fc43

Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats. The SQL drivers and authentication plug-ins are in their subpackages...

[SECURITY] Fedora 44 Update: dovecot-2.4.3-2.fc44

Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats. The SQL drivers and authentication plug-ins are in their subpackages...

Fedora 43 : dovecot (2026-51dba40a65)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-51dba40a65 advisory. updated to 2.4.3 which includes several security fixes Tenable has extracted the preceding description block directly from the Fedora security...

RockyLinux 9 : dovecot (RLSA-2026:13857)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:13857 advisory. dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command CVE-2025-59032 dovecot: denial of service via crafted...

RockyLinux 8 : dovecot (RLSA-2026:13830)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:13830 advisory. dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command CVE-2025-59032 dovecot: denial of service via crafted...

Fedora 44 : dovecot (2026-4349d04c20)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-4349d04c20 advisory. updated to 2.4.3 which includes several security fixes Tenable has extracted the preceding description block directly from the Fedora security...

dovecot security update

An update is available for dovecot. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Dovecot is an IMAP server for Linux and other UNIX-like systems, written...

RHSA-2026:13857 Red Hat Security Advisory: dovecot security update

Bulletin has no description...

RHSA-2026:13830 Red Hat Security Advisory: dovecot security update

Bulletin has no description...

AlmaLinux 10 : dovecot (ALSA-2026:13498)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:13498 advisory. dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command CVE-2025-59032 dovecot: denial of service via crafted...