{"id":"CLSA-2026-1780068958","summary":"unbound: Fix of 3 CVEs","details":"- CVE-2026-41292: cap parsed incoming EDNS options at 100 to prevent\n  per-thread parse stalls under crafted long-option-list queries\n- CVE-2026-42944: de-duplicate NSID/Padding EDNS options at parse time\n  to prevent heap overflow during EDNS encoding in attach_edns_record\n- CVE-2026-44608: hold the auth-zone read lock across nsip/nsdname\n  trigger application in rpz_callback_from_iterator_module to avoid\n  use-after-free under concurrent RPZ XFR reload","modified":"2026-10-26T09:31:05.639876881Z","published":"2026-05-29T15:36:02Z","upstream":["CVE-2026-41292","CVE-2026-42944","CVE-2026-44608"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1780068958.html"}],"affected":[{"package":{"name":"python3-unbound","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/python3-unbound?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-19.el9_6.1.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1780068958.json"}},{"package":{"name":"unbound","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/unbound?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-19.el9_6.1.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1780068958.json"}},{"package":{"name":"unbound-devel","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/unbound-devel?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-19.el9_6.1.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1780068958.json"}},{"package":{"name":"unbound-dracut","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/unbound-dracut?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-19.el9_6.1.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1780068958.json"}},{"package":{"name":"unbound-libs","ecosystem":"TuxCare:AlmaLinux:9.6","purl":"pkg:rpm/tuxcare/unbound-libs?distro=almalinux-9.6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-19.el9_6.1.tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1780068958.json"}}],"schema_version":"1.9.0"}