{"id":"ALSA-2026:55442","summary":"Important: bind9.18 security update","details":"BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.  \n\nSecurity Fix(es):  \n\n  * bind9: bind: Potential wildcard CNAME RPZ policy bypass (CVE-2026-11331)\n  * bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321)\n  * bind: bind9: Potential memory usage beyond configured limits (CVE-2026-11622)\n  * bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards (CVE-2026-11721)\n  * bind: bind9: Unexpected exit with NSEC and NSEC3 both present (CVE-2026-13204)\n  * bind: bind9: Incorrect acceptance of NSEC3 records (CVE-2026-10723)\n\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.\n","modified":"2026-08-19T14:11:50.733549648Z","published":"2026-08-17T00:00:00Z","related":["CVE-2026-10723","CVE-2026-11331","CVE-2026-11622","CVE-2026-11721","CVE-2026-13204","CVE-2026-13321"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:55442"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-10723"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-11331"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-11622"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-11721"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-13204"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-13321"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2503721"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2504166"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2504298"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2504338"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2504447"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2504560"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-55442.html"}],"affected":[{"package":{"name":"bind9.18","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}},{"package":{"name":"bind9.18-chroot","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-chroot"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}},{"package":{"name":"bind9.18-devel","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}},{"package":{"name":"bind9.18-dnssec-utils","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-dnssec-utils"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}},{"package":{"name":"bind9.18-doc","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-doc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}},{"package":{"name":"bind9.18-libs","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}},{"package":{"name":"bind9.18-utils","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/bind9.18-utils"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32:9.18.29-14.el9_8.8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:55442.json"}}],"schema_version":"1.9.0"}