{"id":"CLSA-2026-1779294291","summary":"dnsmasq: Fix of 3 CVEs","details":"- CVE-2026-4890: fix NSEC bitmap parsing infinite loop in DNSSEC validation\n- CVE-2026-4891: verify rdlen field in RRSIG packets\n- CVE-2026-4892: fix buffer overflow in helper.c with large DHCPv6 CLIDs","modified":"2026-10-26T09:31:41.204430365Z","published":"2026-05-21T10:26:15Z","upstream":["CVE-2026-4890","CVE-2026-4891","CVE-2026-4892"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1779294291.html"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/dnsmasq?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.76-17.el7_9.3.tuxcare.els4"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779294291.json"}},{"package":{"name":"dnsmasq-utils","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/dnsmasq-utils?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.76-17.el7_9.3.tuxcare.els4"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779294291.json"}}],"schema_version":"1.9.0"}