{"id":"RLSA-2026:36777","summary":"Important: 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: Denial of Service via excessive EDNS options (CVE-2026-41292)\n\n* unbound: Unbound: Cache manipulation via 'ghost domain names' attack (CVE-2026-40622)\n\n* unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets (CVE-2026-44390)\n\n* unbound: Unbound: Denial of Service due to degraded resolution performance in jostle logic (CVE-2026-42534)\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.","modified":"2026-07-28T18:26:06.318905970Z","published":"2026-07-28T18:03:31.892523Z","upstream":["CVE-2026-40622","CVE-2026-41292","CVE-2026-42534","CVE-2026-44390"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:36777"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480125"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480127"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480130"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480131"}],"affected":[{"package":{"name":"unbound","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/unbound?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.24.2-3.el9_8.2"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:36777.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}