Cloudflare service outage June 12, 2025
A third-party cloud storage failure knocked out Cloudflare’s Workers KV service for nearly two and a half hours, cascading into outages across Access, WARP, the dashboard and many dependent products.
On 12 June 2025 Cloudflare suffered a 2 hour 28 minute outage when the storage backing its Workers KV service failed, taking down a long list of services that rely on it.
The short version
- The incident ran from 17:52 UTC to 20:28 UTC, lasting 2 hours and 28 minutes.
- Root cause was a failure in the underlying storage for Workers KV, part of which is hosted by a third-party cloud provider that had its own outage.
- Workers KV saw a roughly 90.22% request failure rate at the peak of the incident.
- Affected services included Access (100% login failures), WARP device registration, Gateway, the dashboard, Turnstile, Workers AI and Stream.
- Core data-plane services such as DNS, Cache, the proxy, WAF, Magic Transit and Magic WAN were not directly impacted.
- Cloudflare confirmed no customer data was lost as a result of the incident.
Why it matters
The outage is a textbook example of concentration risk: a single shared dependency (Workers KV) backed by an external provider became a single point of failure that rippled through dozens of otherwise unrelated Cloudflare products. It underlines how much of the modern internet’s control plane sits behind a handful of platform services.
Summary by Nerd News Network. Read the full article at Cloudflare Blog via the links above and below.