{"id":"CLSA-2026-1790803691","summary":"unbound: Fix of 2 CVEs","details":"- CVE-2026-81634: check the remaining buffer space in rrset_canonical()\n  and rrset_canonicalize_to_buffer() before writing the signature, owner\n  name and RDATA, so an oversized RRset can no longer overflow the heap\n  buffer during DNSSEC canonicalization; includes the upstream unit test\n- CVE-2026-80225: cap the pipelined queries drained from one TCP/DoT\n  connection per event-loop turn (NUM_TCP_PER_SELECT) and defer the rest\n  with a zero-delay timer, so one client can no longer starve other\n  connections","modified":"2026-10-26T09:43:50.599051450Z","published":"2026-09-30T21:28:25Z","upstream":["CVE-2026-80225","CVE-2026-81634"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1790803691.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80225"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81634"}],"affected":[{"package":{"name":"python3-unbound","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/python3-unbound?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-3.el9_2.tuxcare.els16"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790803691.json"}},{"package":{"name":"unbound","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/unbound?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-3.el9_2.tuxcare.els16"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790803691.json"}},{"package":{"name":"unbound-devel","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/unbound-devel?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-3.el9_2.tuxcare.els16"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790803691.json"}},{"package":{"name":"unbound-libs","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/unbound-libs?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-3.el9_2.tuxcare.els16"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790803691.json"}}],"schema_version":"1.9.0"}