{"schema_version": "1.7.0", "id": "RLSA-2026:13498", "modified": "2026-05-06T12:07:41.984906Z", "published": "2026-05-06T12:05:16.751656Z", "upstream": ["CVE-2025-59032", "CVE-2026-27857", "CVE-2026-27858"], "summary": "Important: dovecot security update", "details": "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. \n\nSecurity Fix(es):\n\n* dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command (CVE-2025-59032)\n\n* dovecot: denial of service via crafted message before authentication (CVE-2026-27858)\n\n* dovecot: denial of service via specially crafted NOOP command (CVE-2026-27857)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "dovecot", "purl": "pkg:rpm/rocky-linux/dovecot?distro=rocky-linux-10&epoch=1"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "1:2.3.21-16.el10_1.1"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:13498"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452175"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452179"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452172"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}]}