CVE-2026-33610 Possible file descriptor exhaustion in forward-dnsupdate

A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it...

CVE-2026-33610

The CVE describes a denial-of-service risk in PowerDNS: a rogue primary server can exhaust file descriptors when a PowerDNS secondary forwards a DNS update request to it. This is triggered in the forward-dnsupdate path, leading to an eventual DoS on the affected system. Connected advisories (OSV/...