Net::DNS versions through 1.55 for Perl allow remote execution injection via EDNS EXTENDED ERROR. (CVE-2026-64193) Net::DNS versions through 1.55 for Perl allow Denial of Service via deep DNS compression pointer chains. (CVE-2026-64194) Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sig_data when re-encoding a message with a misplaced TSIG record. (CVE-2026-81928)