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Medium severity5.3NVD Advisory· Published Feb 9, 2026· Updated Apr 20, 2026

CVE-2026-0398

CVE-2026-0398

Description

Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2

PowerDNS/Recursor2 versions
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*range: >=5.1.0,<5.1.10
- (no CPE)

Patches

Vulnerability mechanics

References

1

docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.htmlnvdVendor Advisory

News mentions

0

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