RHSA-2026:41988 Red Hat Security Advisory: dovecot security update

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RHEL 9 : dovecot (RHSA-2026:44373)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:44373 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...

The vulnerability of Dovecot and OX Dovecot Pro mail servers, related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of Dovecot and OX Dovecot Pro mail servers is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of Dovecot and OX Dovecot Pro mail servers, related to improper control of resource identifiers (“resource injection”), allows attackers to cause service failures.

The vulnerability of Dovecot and OX Dovecot Pro mail servers is related to improper control of resource identifiers “resource injection”. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the Dovecot mail server, related to insufficient input validation, allows attackers to cause service failures.

The vulnerability of the Dovecot mail server is related to insufficient validation of input data. Exploiting this vulnerability can allow a remote attacker to cause service failures...

The vulnerability of the Local Mail Transfer Protocol (LMTP) used by Dovecot and OX Dovecot Pro mail servers, which is related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of the Local Mail Transfer Protocol LMTP used by Dovecot and OX Dovecot Pro mail servers involves an uncontrolled consumption of resources. Exploiting this vulnerability allows a malicious actor to cause service failures...

The vulnerability of the dovecot-acl file in Dovecot and OX Dovecot Pro mail servers, due to access control deficiencies, allows attackers to trigger service interruptions.

The vulnerability of the dovecot-acl file in Dovecot and OX Dovecot Pro mail servers is related to deficiencies in access control. Exploiting this vulnerability can allow a malicious actor to cause service failures...

RHEL 9 : dovecot (RHSA-2026:44355)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:44355 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...

The vulnerability of Dovecot and OX Dovecot Pro mail servers, related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of Dovecot and OX Dovecot Pro mail servers is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the Dovecot mail server, related to insufficient protection of service data, allows attackers to gain unauthorized access to protected information.

The vulnerability of the Dovecot mail server is related to insufficient protection of service data. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information...

The vulnerability of the Dovecot mail server, related to the possibility of bypassing the authentication process, allows attackers to gain unauthorized access to protected information.

The vulnerability of the Dovecot mail server relates to the possibility of bypassing the authentication process. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information...

The vulnerability of the ManageSieve mail server services Dovecot and OX Dovecot Pro, related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of the ManageSieve mail server services Dovecot and OX Dovecot Pro is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the doveadm component of the Dovecot mail server allows a hacker to gain unauthorized access to protected information.

The vulnerability of the doveadm component of the Dovecot mail server is related to the disclosure of information based on temporal discrepancies. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information...

The vulnerability of the ManageSieve mail server services Dovecot and OX Dovecot Pro, related to uncontrolled resource consumption, allows attackers to cause service failures.

The vulnerability of the ManageSieve mail server services Dovecot and OX Dovecot Pro is related to an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service failures...

RHEL 9 : dovecot (RHSA-2026:44357)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:44357 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

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...

RLSA-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...

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-2026:41905 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...

RockyLinux 9 : dovecot (RLSA-2026:41905)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:41905 advisory. dovecot: Dovecot: Denial of Service via excessive IMAP bracing CVE-2026-42006 Tenable has extracted the preceding description block directly from the RockyLinux...