CVE-2026-93008 — Vulnerability intelligence
—
Published:
- CVSS
- 6.8
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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 can inject cache entries for unrelated names. Later clients may then receive attacker-chosen addresses for those names.