Search: CVE-2026-2291

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server. Security Fix(es): * dnsmasq: dnsmasq: heap buffer overflow in cache via NAME_ESCAPE expansion (CVE-2026-2291) * dnsmasq: NSEC bitmap parsing infinite loop (CVE-2026-4890) * dnsmasq: RRSIG rdlen underflow leading to heap OOB read (CVE-2026-4891) * dnsmasq: DHCPv6 CLID buffer overflow in helper process (CVE-2026-4892) * dnsmasq: Broken ECS source validation bypass (CVE-2026-4893) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.