Red Hat Security Advisory: dnsmasq security update

CVE-2026-2291 — dnsmasq: dnsmasq: heap buffer overflow in cache via NAME_ESCAPE expansion CVE-2026-4890 — dnsmasq: NSEC bitmap parsing infinite loop CVE-2026-4891 — dnsmasq: RRSIG rdlen underflow leading to heap OOB read CVE-2026-4892 — dnsmasq: DHCPv6 CLID buffer overflow in helper process CVE-2026-4893 — dnsmasq: Broken ECS source validation bypass