Cloudflare BYOIP Service Outage on February 20, 2026: Network Configuration Issue Causes Route Withdrawals
By
nomaxx117
Fresh out the oven, still warm. Top of the tray.
Summary
Cloudflare experienced a service outage on February 20, 2026, affecting customers using their Bring Your Own IP (BYOIP) service. The issue was caused by a network configuration change that unintentionally withdrew customer prefixes via BGP, not by any cyberattack or malicious activity. The outage impacted a subset of BYOIP customers who saw their routes to the Internet withdrawn.
Key quotes
· 4 pulledOn February 20, 2026, at 17:48 UTC, Cloudflare experienced a service outage when a subset of customers who use Cloudflare's Bring Your Own IP (BYOIP) service saw their routes to the Internet withdrawn via Border Gateway Protocol (BGP).
The issue was not caused, directly or indirectly, by a cyberattack or malicious activity of any kind.
This issue was caused by a change that Cloudflare made to how our network manages IP addresses onboarded through the BYOIP pipeline.
This change caused Cloudflare to unintentionally withdraw customer prefixes.
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