{"id":"AZL-112430","summary":"CVE-2026-93009 affecting package dnsmasq 2.93-1","details":"A flaw was found in dnsmasq. The DHCPv6 client hostname parser can read one byte past the end of a crafted FQDN option because it checks the next label length before confirming the pointer is still inside the option. An attacker on the local network can trigger this with a single DHCPv6 packet. The extra byte is not returned to the client or logged, and no crash has been demonstrated.","modified":"2026-11-03T05:33:06Z","published":"2026-10-29T14:18:00Z","upstream":["CVE-2026-93009"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93009"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/dnsmasq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.93-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-112430.json"}}],"schema_version":"1.9.2"}