{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/dovecot/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["dovecot","vulnerability","sql-injection","authentication-bypass","dos"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eMultiple vulnerabilities have been identified in the Dovecot mail server software. An attacker can leverage these flaws to execute SQL injection attacks, potentially gaining unauthorized access to the underlying database. Furthermore, successful exploitation could lead to bypassing authentication mechanisms, allowing unauthorized access to mailboxes and sensitive information. The vulnerabilities also pose a risk of sensitive information disclosure and denial-of-service (DoS) conditions, disrupting mail services. The broad functionality affected by these flaws makes it a high-priority issue for organizations using Dovecot.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies a vulnerable Dovecot instance accessible over the network.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious input string designed to exploit a SQL injection vulnerability in Dovecot\u0026rsquo;s authentication or user management modules.\u003c/li\u003e\n\u003cli\u003eThe attacker submits the crafted input to a Dovecot service, such as IMAP or POP3, during the authentication process.\u003c/li\u003e\n\u003cli\u003eIf the SQL injection is successful, the attacker gains unauthorized access to the Dovecot database.\u003c/li\u003e\n\u003cli\u003eThe attacker uses the database access to extract user credentials or modify authentication settings.\u003c/li\u003e\n\u003cli\u003eAlternatively, the attacker exploits the SQL injection to disclose sensitive configuration data or internal system information.\u003c/li\u003e\n\u003cli\u003eIf authentication bypass is successful, the attacker logs into a targeted user\u0026rsquo;s mailbox without valid credentials.\u003c/li\u003e\n\u003cli\u003eThe attacker causes a denial-of-service condition by sending malformed requests that crash the Dovecot server.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these vulnerabilities could lead to complete compromise of the Dovecot server and the data it manages. This includes unauthorized access to user mailboxes, disclosure of sensitive information, and disruption of email services. The impact ranges from data breaches and loss of confidentiality to service outages and reputational damage. The severity depends on the specific vulnerability exploited and the configuration of the Dovecot instance.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClosely monitor Dovecot logs for suspicious SQL-related errors or authentication failures (reference: description of SQL injection vulnerability).\u003c/li\u003e\n\u003cli\u003eImplement strict input validation and sanitization measures to mitigate potential SQL injection attacks within Dovecot configurations.\u003c/li\u003e\n\u003cli\u003eSince the advisory does not list specific log sources, enable verbose logging for Dovecot services to capture detailed information about authentication attempts and database interactions.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-03-30T10:14:10Z","date_published":"2026-03-30T10:14:10Z","id":"/briefs/2026-03-dovecot-vulns/","summary":"Multiple vulnerabilities in Dovecot can be exploited by an attacker to perform SQL injection attacks, bypass authentication, disclose sensitive information, or cause a denial-of-service condition.","title":"Multiple Vulnerabilities in Dovecot Mail Server","url":"https://feed.craftedsignal.io/briefs/2026-03-dovecot-vulns/"}],"language":"en","title":"CraftedSignal Threat Feed — Dovecot","version":"https://jsonfeed.org/version/1.1"}