Fedora 43 BIND Fixes DNSSEC and Resolver Security Risks

Update to 9.21.26 (rhbz#2489832) Security Fixes: Prevent excessive CPU use validating crafted DNSSEC responses. (CVE-2026-19668) Require a TSIG on every message of incoming zone transfers. (CVE-2026-19033) Prevent a DNSSEC downgrade of secure delegations via unrelated NSEC3 records.LinuxSecurity – Security AdvisoriesRead More