Cloudflare misconfiguration behind recent BGP route leak
ID: 323f7542-5ec5-5bc4-8920-805fcd9d9b84
STIX ID: report--323f7542-5ec5-5bc4-8920-805fcd9d9b84
Feed Name: Bleeping Computer
Cloudflare reported a 25-minute IPv6 BGP route leak on January 22 caused by a misconfigured export policy in Miami that redistributed internal routes to external neighbors, creating Type 3/4 leaks per RFC 7908 and resulting in congestion, packet loss, and about 12 Gbps of dropped traffic; the company quickly reverted the change, paused automation, and plans stronger safeguards including community-based export controls, CI/CD policy checks, improved early detection, RFC 9234 validation, and promoting RPKI ASPA adoption to prevent recurrence.
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