CVE-2026-0398 Affecting pdns-recursor package, versions <5.3.5-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.32% (25th percentile)

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  • Snyk IDSNYK-DEBIAN14-PDNSRECURSOR-15253028
  • published10 Feb 2026
  • disclosed9 Feb 2026

Introduced: 9 Feb 2026

CVE-2026-0398  (opens in a new tab)

How to fix?

Upgrade Debian:14 pdns-recursor to version 5.3.5-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pdns-recursor package and not the pdns-recursor package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

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