{"schema_version": "1.7.0", "id": "RLSA-2026:71487", "modified": "2026-09-25T18:13:55.796442Z", "published": "2026-09-25T18:04:58.698983Z", "upstream": ["CVE-2026-81634", "CVE-2026-81642", "CVE-2026-82717"], "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\n* unbound: Unbound: Heap buffer overflow via malicious DNSSEC response (CVE-2026-81634)\n\n* unbound: Unbound: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY (CVE-2026-81642)\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:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "unbound", "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_8.8"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:71487"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535051"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535054"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535059"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:71487"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:71487"}}