Back to CVE records
Medium 5.3Published Feb 9, 2026
CVE-2026-0398Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
Updated under an hour ago ()
Does this affect you?
It affects powerdns recursor. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Start free and add your stack
Free account, 1 product
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
powerdns recursor powerdns:recursor | from 5.1.0 before 5.1.10; from 5.2.8 before 5.2.8; from 5.3.0 before 5.3.5 | NVD |
References
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.htmlvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.