{"id":"CLSA-2026-1792810088","summary":"unbound: Fix of 6 CVEs","details":"- CVE-2025-5994: do not cache non-ECS answers to ECS queries in the subnet cache (Rebirthday attack)\n- CVE-2026-40622: limit the TTL of a higher-trust NS rrset replacing a cached delegation (ghost domain)\n- CVE-2026-50106: treat an unsigned parent denial of an island trust anchor as bogus\n- CVE-2026-96405: add a per-packet budget for name decompression pointers\n- CVE-2026-109125: clear pending queries on a port when the unwanted-reply threshold is hit\n- CVE-2026-35501: fix NSEC-not-at-apex parent-side key lookup for island trust anchors","modified":"2026-10-26T09:43:45.650812372Z","published":"2026-10-24T02:48:24Z","upstream":["CVE-2025-5994","CVE-2026-109125","CVE-2026-35501","CVE-2026-40622","CVE-2026-50106","CVE-2026-96405"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1792810088.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-5994"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109125"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35501"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40622"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50106"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96405"}],"affected":[{"package":{"name":"unbound","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/unbound?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-5.0.1.el7_8.tuxcare.els3"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792810088.json"}},{"package":{"name":"unbound-devel","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/unbound-devel?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-5.0.1.el7_8.tuxcare.els3"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792810088.json"}},{"package":{"name":"unbound-libs","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/unbound-libs?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-5.0.1.el7_8.tuxcare.els3"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792810088.json"}},{"package":{"name":"unbound-python","ecosystem":"TuxCare:RHEL:7","purl":"pkg:rpm/tuxcare/unbound-python?distro=rhel-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.6-5.0.1.el7_8.tuxcare.els3"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792810088.json"}}],"schema_version":"1.9.0"}