CVE-2026-52684 — Prefetch Feature Allows Persistent Ghost Domain Cache Poisoning Attack
If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then th…
Published: 2026-07-23 · CVSS: 3.7 · CVSS 3.1
If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the child records are used immediately if not expired and thus valid, or the records are expired, and in that case not used. So this case can only happen if almost expired records are used to refresh the authoritative NS records.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7