📄 Dovecot ManageSieve Crash Denial of Service

This Metasploit auxiliary module targets a denial of service vulnerability in the Dovecot ManageSieve service, where improper handling of authentication requests can lead to service crashes. Affects Dovecot CE core 2.4.0-2.4.2 and Dovecot Pro core 3.1.0-3.1.2. Fixed in versions 2.4.3 and 3.1.3...

📄 Dovecot doveadm Timing Attack / Credential Extraction

This Metasploit auxiliary module performs a timing-based side-channel attack against the Dovecot doveadm HTTP interface to extract credentials character by character. ==================================================================================================================================...

📄 Dovecot OTP Replay Attack

This Metasploit auxiliary module targets a vulnerability in Dovecot's OTP One-Time Password authentication system that allows potential replay attacks when authentication caching is enabled and username handling is improperly managed...

📄 Dovecot 3.1.0 Authentication Bypass / User Enumeration

This Metasploit auxiliary module targets an LDAP injection vulnerability in Dovecot mail servers that can lead to authentication bypass or user enumeration via IMAP/POP3. Version 3.1.0 is affected...

📄 Dovecot MIME Parameter CPU Exhaustion

This Metasploit module targets a denial of service vulnerability in the Dovecot LMTP service caused by excessive CPU consumption. ================================================================================================================================== | Title : Dovecot MIME Parameter CPU...

📄 Dovecot passwd-file Path Traversal

This Metasploit auxiliary module targets a path traversal vulnerability in Dovecot's passwd-file authentication backend when per-domain configuration is enabled. ================================================================================================================================== |...

Amazon Linux 2023 : dovecot, dovecot-devel, dovecot-mysql (ALAS2023-2026-1570)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1570 advisory. Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the...

Important: dovecot

Issue Overview: Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the credential will lead into full access to the affected component. Limit access to the doveadm ht...

OESA-2026-1849 dovecot security update

Dovecot is an IMAP server for Linux/UNIX-like systemsa wrapper package that will just handle common things for all versioned dovecot packages. Security Fixes: Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can u...

[SECURITY] [DSA 6197-2] dovecot regression update

------------------------------------------------------------------------- Debian Security Advisory DSA-6197-2 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 06, 2026 https://www.debian.org/security/faq -...

Debian: Security Advisory (DSA-6197-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DSA 6197-1] dovecot security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6197-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 05, 2026 https://www.debian.org/security/faq -...

Debian dsa-6197 : dovecot-auth-lua - security update

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6197 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6197-1 [email protected] https://www.debian.org/securit...

Ubuntu: Security Advisory (USN-8136-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : Dovecot vulnerabilities (USN-8136-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8136-1 advisory. It was discovered that Dovecot incorrectly handled invalid base64 SASL data. An attacker could possibly use this issue to cause a...

dovecot24-2.4.3-1.1 on GA media (moderate)

dovecot24-2.4.3-1.1 on GA media Announcement ID: openSUSE-SU-2026:10442-1 Rating: moderate Cross-References: CVE-2025-59028 CVE-2025-59031 CVE-2025-59032 CVE-2026-24031 CVE-2026-27855 CVE-2026-27856 CVE-2026-27857 CVE-2026-27858 CVE-2026-27859 CVE-2026-27860 CVSS scores: CVE-2025-59028 SUSE : 5.3...

SUSE CVE-2025-59031

Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can use specially crafted OOXML documents to cause unintended files on the system to be indexed and subsequently ending up in FTS indexes. Do not use the provided...

SUSE CVE-2026-0394

When dovecot has been configured to use per-domain passwd files, and they are placed one path component above /etc, or slash has been added to allowed characters, path traversal can happen if the domain component is directory partial. This allows inadvertently reading /etc/passwd or some other pa...

SUSE CVE-2026-24031

Dovecot SQL based authentication can be bypassed when authusernamechars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear authusernamechars. If this is not possible, install latest fixed version. No publicly available exploits...

SUSE CVE-2026-27855

Dovecot OTP authentication is vulnerable to replay attack under specific conditions. If auth cache is enabled, and username is altered in passdb, then OTP credentials can be cached so that same OTP reply is valid. An attacker able to observe an OTP exchange is able to log in as the user. If...