CVE-2026-93008
Medium
Description
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.
SeverityMedium
CVSS6.8
Exploit probability—
Product
Microsoft Azl3 Dnsmasq
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-345CWE-345
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft azl3_dnsmasq_2.93-1 | No range specified | — |
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