CVE-2026-0398
pdns-recursor - security update
5.3
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
How to fix CVE-2026-0398
To remediate CVE-2026-0398, upgrade the affected package to a fixed version below.
- Debian/pdns-recursor—no fix listed
- Debian/pdns-recursor—upgrade to 5.2.8-0+deb13u1 or later
Is CVE-2026-0398 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 5.2.8-0+deb13u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |