{"id":"CLSA-2026-1785489388","summary":"unbound: Fix of 3 CVEs","details":"- CVE-2026-50243: do not let response-ip/rpz rewrite a BOGUS answer; return SERVFAIL\n- CVE-2026-42923: cap NSEC3 hash calculations in the negative-cache DS proof\n  and reject oversized NSEC3 salt\n- CVE-2024-43168: reject negative port numbers in outgoing-port-permit/avoid\n  to prevent an out-of-bounds write","modified":"2026-10-26T09:43:57.925582416Z","published":"2026-07-31T09:16:43Z","upstream":["CVE-2024-43168","CVE-2026-42923","CVE-2026-50243"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1785489388.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43168"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42923"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50243"}],"affected":[{"package":{"name":"python3-unbound","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/python3-unbound?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1785489388.json"}},{"package":{"name":"unbound","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/unbound?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1785489388.json"}},{"package":{"name":"unbound-devel","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/unbound-devel?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1785489388.json"}},{"package":{"name":"unbound-libs","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/unbound-libs?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.2-5.el8.tuxcare.els10"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1785489388.json"}}],"schema_version":"1.9.0"}