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.
History

Fri, 06 Nov 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els

Tue, 03 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 30 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Dnsmasq
Dnsmasq dnsmasq
Red Hat
Red Hat enterprise Linux
Redhat openshift Container Platform
Redhat openstack Platform
Vendors & Products Dnsmasq
Dnsmasq dnsmasq
Red Hat
Red Hat enterprise Linux
Redhat openshift Container Platform
Redhat openstack Platform

Fri, 30 Oct 2026 08:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:5

Fri, 30 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Low


Thu, 29 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Dnsmasq: dnsmasq: --leasequery without address argument applies no source address check
First Time appeared Redhat
Redhat ceph Storage
Redhat enterprise Linux
Redhat openshift
Redhat openstack
Weaknesses CWE-862
CPEs cpe:/a:redhat:ceph_storage:9
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openstack:13
cpe:/a:redhat:openstack:18.0
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat ceph Storage
Redhat enterprise Linux
Redhat openshift
Redhat openstack
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-10-29T13:13:23.430Z

Updated: 2026-11-06T19:57:48.987Z

Reserved: 2026-09-17T14:35:34.562Z

Link: CVE-2026-93010

cve-icon Vulnrichment

Updated: 2026-11-03T15:31:27.134Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-29T14:18:00.530

Modified: 2026-11-06T20:17:29.383

Link: CVE-2026-93010

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-28T09:30:00Z

Links: CVE-2026-93010 - Bugzilla