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    CVE-2026-93010

    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.

    Published:Oct 29, 2026
    Last Modified:Oct 29, 2026
    EPS:Oct 29, 2026
    EPSS Score:
    CVSS Score:4.3

    Affected Products

    Vendor
    Redhat
    Product
    Ceph Storage
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openstack

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

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    CVE-2026-93011 (CVSS 5.3) — A flaw was found in dnsmasq. After a reduction of internal domain-name buffer sizes, the DNSSEC validator can …
    CVE-2026-93008 (CVSS 6.8) — A flaw was found in dnsmasq. When following a CNAME in a DNS response, the resolver can cache records for the …
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-93010 — Redhat (Medium 4.3) | CVE-DB