{"id":"RLSA-2026:55841","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: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes (CVE-2026-44690)\n\n* unbound: Unbound: Denial of Service via malformed EDNS Report-Channel option (CVE-2026-55973)\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":"2026-08-18T06:30:07.519767583Z","published":"2026-08-18T06:04:25.436260Z","upstream":["CVE-2026-44690","CVE-2026-55973"],"database_specific":{"license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:55841","license":"CC-BY-4.0"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:55841"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2503063"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2503075"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:55841"}],"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_8.4"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:55841.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}