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CVE-2026-0398
Published: Feb 9, 2026
Modified: Feb 9, 2026
PUBLISHED
CVSS v3.1
5.3
MEDIUM
Description
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
| Vendor | Product | Versions |
|---|---|---|
PowerDNS | Recursor | affected 5.3.0 - < 5.3.5affected 5.2.0 - < 5.2.8affected 5.1.0 - < 5.1.10 |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
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