Dnsmasq: dnsmasq: out-of-bailiwick cache injection through cname chase in split-dns configurations
A flaw was found in dnsmasq. When following a CNAME in a DNS response, the resolver can cache records for the CNAME target without checking that those records belong to the responding server's authorized zone. In split-DNS deployments that send some domains to a specific upstream, an attacker who controls that upstream…
Severity medium: primary CNA CVSS 6.8 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. EPSS unavailable for this snapshot.
Published 2026-10-29T12:33:22.941Z. Updated 2026-10-29T12:33:22.941Z.