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Outage in CoreWeave

Object Storage Performance Degradation in US-WEST-01A

Resolved Minor
August 27, 2026 - Started 8 days ago - Lasted about 16 hours

Incident Report

We are investigating elevated error rates and increased latency for Object Storage in the US-WEST-01A region. Requests to this region may intermittently return HTTP 503 responses or take longer than usual to complete. Our engineering team is actively engaged and working to identify the root cause.

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Latest Updates ( sorted recent to last )
8 days ago - at 08/27/2026 03:37AM

We are investigating elevated error rates and increased latency for Object Storage in the US-WEST-01A region. Requests to this region may intermittently return HTTP 503 responses or take longer than usual to complete. Our engineering team is actively engaged and working to identify the root cause.

8 days ago - at 08/27/2026 09:03AM

We have identified the issue and are continuing to work on a resolution at this time.

8 days ago - at 08/27/2026 10:49AM

We've implemented a fix to address the object storage latency and error codes in US-WEST-01A.
All services are now fully operational, and we are monitoring closely to ensure stability.

 If you continue to see issues, please reach out to support@coreweave.com.

8 days ago - at 08/27/2026 01:19PM

We are investigating renewed elevated error rates and increased latency for object storage in US-WEST-01A. A change applied earlier today improved service for a period, but the degradation has returned and our engineering team is actively engaged and working to identify the root cause. Clients may see intermittent 503 responses.

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