2360 matches found
RHSA-2026:41905 Red Hat Security Advisory: dovecot security update
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dovecot: Dovecot: Denial of Service via excessive IMAP bracing
A flaw was found in Dovecot. A remote attacker can exploit this vulnerability by sending excessive open braces over the Internet Message Access Protocol IMAP, leading to uncontrolled memory usage. This can cause the affected system to consume memory up to its configured limit, resulting in a Deni...
Important: Red Hat Security Advisory: dovecot security update
An update for dovecot is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...
ALSA-2026:41905 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...
RHEL 10 : dovecot (RHSA-2026:41988)
The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:41988 advisory. 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...
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...
RHEL 10 : dovecot (RHSA-2026:42091)
The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:42091 advisory. 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...
RHEL 9 : dovecot (RHSA-2026:41905)
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:41905 advisory. 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...
dovecot security update
1:2.3.21-19.1 - fix CVE-2026-42006: fix imapparser listcountlimit to actually work RHEL-188477...
Oracle Linux 10 : dovecot (ELSA-2026-41988)
The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-41988 advisory. 1:2.3.21-19.1 - fix CVE-2026-42006: fix imapparser listcountlimit to actually work RHEL-188477 Tenable has extracted the preceding description block directly...
dovecot security update
1:2.3.16-18.1 - fix CVE-2026-42006: IMAP parser listcountlimit bypass via open parentheses RHEL-188468...
ALSA-2026:41988 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...
ROS-20260708-73-0048
The vulnerability in dovecot is related to an uncontrolled resource consumption. Exploiting this vulnerability can allow a remote attacker to cause service failures...
Security update for dovecot24 (important)
openSUSE security update: security update for dovecot24 ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21109-1 Rating: important References: bsc1265146 bsc1265147 bsc1265148 bsc1265149 bsc1265150 Cross-References: CVE-2026-27851 CVE-2026-33603...
SUSE SLES12: dovecot22 / dovecot22-backend-mysql / dovecot22-backend-pgsql / etc (SUSE-SU-2026:2645-1)
The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2645-1 advisory. This update for dovecot22 fixes the following issues - CVE-2026-33603: login: base64 input can contain tabs that bypass IPC protection...
SUSE SLES16: dovecot24 / dovecot24-backend-mysql / dovecot24-backend-pgsql / etc (SUSE-SU-2026:22185-1)
The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22185-1 advisory. This update for dovecot24 fixes the following issues - CVE-2026-27851: lib-var-expand: safe filter leaks to all following pipeline...
Oracle Linux 9 : dovecot (ELSA-2026-19364)
The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-19364 advisory. - fix CVE-2026-27858: denial of service via crafted message before authentication RHEL-161640 - fix CVE-2025-59032: ManageSieve: Denial of Service via...
OPENSUSE-SU-2026:21109-1 Security update for dovecot24
This update for dovecot24 fixes the following issues - CVE-2026-27851: lib-var-expand: safe filter leaks to all following pipelines bsc1265146. - CVE-2026-33603: login: base64 input can contain tabs that bypass IPC protection bsc1265147. - CVE-2026-40016: Sieve: contains/: matches ONxM substring...
SUSE-SU-2026:22185-1 Security update for dovecot24
This update for dovecot24 fixes the following issues - CVE-2026-27851: lib-var-expand: safe filter leaks to all following pipelines bsc1265146. - CVE-2026-33603: login: base64 input can contain tabs that bypass IPC protection bsc1265147. - CVE-2026-40016: Sieve: contains/: matches ONxM substring...