Hi, We saw this issue appearing on our unbound (1.9.0-2+deb10u2) nodes since Feb 28th 8am CET as well.
Updating to the packages from https://people.debian.org/~edmonds/unbound/1.9.6-0+deb10u0/ solved the issue for us. Is there a specific query or command to reproduce this on the older version? Im just wondering, why we started seeing this only since yesterday. We do take a bit of traffic on our unbound nodes and should have noticed this earlier. Best regards - Volker
