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Vendor Workaround
The following measures reduce risk: 1. Prefer --leasequery=<addr>[/prefix] so only designated relays may query. 2. If leasequery is not needed, do not enable it. It is off by default. 3. If unrestricted leasequery is required, use firewall rules to limit which hosts can send DHCP packets to dnsmasq.
Tracking
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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 |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-29T13:13:23.430Z
Reserved: 2026-09-17T14:35:34.562Z
Link: CVE-2026-93010
No data.
Status : Awaiting Analysis
Published: 2026-10-29T14:18:00.530
Modified: 2026-10-29T14:18:00.640
Link: CVE-2026-93010
No data.
OpenCVE Enrichment
Updated: 2026-10-29T15:45:06Z