Detections
Analytics
CVE-2026-33594
high
Description
A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buffer that will not be released until the end of the connection.
References
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html