Cloudflare service outage June 12, 2025

a year ago

Cloudflare experienced a major outage on June 12, 2025, lasting 2 hours and 28 minutes, affecting multiple critical services.
The outage was caused by a failure in the underlying storage infrastructure of Workers KV, a key dependency for many Cloudflare services.
Affected services included Workers KV, WARP, Access, Gateway, Images, Stream, Workers AI, Turnstile, Challenges, AutoRAG, Zaraz, and parts of the Cloudflare Dashboard.
No data was lost, and the incident was not due to a security breach or attack.
Cloudflare Magic Transit, Magic WAN, DNS, cache, proxy, and WAF services were not directly impacted.
Workers KV saw 90.22% of requests failing, while Access had a 100% failure rate for identity-based logins.
Gateway, WARP, Dashboard, Challenges, Turnstile, Browser Isolation, Images, Stream, Realtime, Workers AI, Pages & Workers Assets, AutoRAG, Durable Objects, D1, Queues & Event Notifications, AI Gateway, CDN, Workers / Workers for Platforms, Workers Builds (CI/CD), Browser Rendering, and Zaraz were all impacted to varying degrees.
The incident timeline details the progression from initial detection to resolution, with services beginning to recover around 20:23 UTC.
Remediation steps include improving Workers KV's storage infrastructure redundancy, reducing dependencies on third-party providers, and implementing tooling for better incident response.
Cloudflare apologized for the outage and is working on long-term improvements to service resiliency.

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