Live › vulnerability › CVE-2026-93010
When DHCP leasequery is enabled without an allowed source list, dnsmasq does not check who sends the query. A host on the local network can read lease records including assigned addresses, MAC addresses and hostnames.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-29 14:25 UTC. All times on this page are UTC.
Only servers running dnsmasq with DHCP leasequery turned on and no list of allowed source addresses. The feature is off by default, so systems that never enabled it can skip this. Exposure is limited to hosts that can reach the DHCP service on the local network.
No product ranges from the sources yet.
grep -i leasequery /etc/dnsmasq.conf /etc/dnsmasq.d/*dnsmasq --versionUnknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
A flaw was found in dnsmasq. When DHCP leasequery is enabled without listing allowed source addresses, the server does not check who sent the query. A host on the local network can request DHCP lease records and learn assigned addresses, MAC addresses, hostnames, and related lease metadata. The feature is off unless an administrator turns it on.
This page as .md · .json · in your agent: get_signal("CVE-2026-93010")
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