Cloudflare's IPv6 BGP misconfiguration triggers a 25-minute global route leak
Cloudflare disclosed a 25-minute IPv6 BGP route leak caused by a policy misconfiguration that caused internal iBGP IPv6 routes to be redistributed to external peers in Miami, leading to congestion, packet loss, and roughly 12 Gbps of dropped traffic; the issue was halted by reverting the change and pausing automation, with Cloudflare proposing safeguards such as stricter export controls, CI/CD checks, early detection, RFC 9234 validation, and broader RPKI ASPA adoption to prevent recurrence.