FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

powerdns-recursor -- Denial of Service

Affected packages
		powerdns-recursor	<	5.3.5

Details

VuXML ID	67793feb-0b5b-11f1-a1c0-0050569f0b83
Discovery	2025-12-08
Entry	2026-02-16

PowerDNS Team reports:

2025-07: Internal logic flaw in cache management can lead to a denial of service in Recursor

2025-08: Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor

2026-01: Crafted zones can lead to increased resource usage in Recursor

2026-01: This problem can be triggered by publishing and querying a crafted zone that causes large memory usage.

[source]

References

CVE Name	CVE-2025-59029
CVE Name	CVE-2025-59030
CVE Name	CVE-2026-0398
CVE Name	CVE-2026-24027
URL	https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-07.html
URL	https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-08.html
URL	https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html