{"id":"ALSA-2026:70754","summary":"Critical: unbound security update","details":"The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.   \n\nSecurity Fix(es):  \n\n  * unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis (CVE-2026-82717)\n  * unbound: Unbound: Heap buffer overflow via malicious DNSSEC response (CVE-2026-81634)\n  * unbound: Unbound: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY (CVE-2026-81642)\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":"2026-09-24T12:41:46.498799428Z","published":"2026-09-23T00:00:00Z","related":["CVE-2026-81634","CVE-2026-81642","CVE-2026-82717"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:70754"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-81634"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-81642"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-82717"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535051"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535054"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2535059"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-70754.html"}],"affected":[{"package":{"name":"python3-unbound","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/python3-unbound"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.14.el8_10.4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"}},{"package":{"name":"unbound","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/unbound"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.14.el8_10.4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"}},{"package":{"name":"unbound-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/unbound-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.14.el8_10.4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"}},{"package":{"name":"unbound-libs","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/unbound-libs"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.14.el8_10.4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:70754.json"}}],"schema_version":"1.9.0"}