# 2025-July-22 Service Incident

- Provider: [Sauce Labs](https://down.guide/saucelabs)
- Level: confirmed
- Impact: Partial outage
- lasted 4h 29m
- started 2025-07-22 08:50 UTC
- US-West, US-West, US-West +2
- us, us-west-1
- id: DWN-73735d1e64
- Official page: https://stspg.io/c9bp7l1whr83

## Updates from Sauce Labs
### 2025-07-22 08:50 UTC: investigating
We are currently seeing intermittent errors accessing the US-West-1 Sauce Labs dashboard. We are investigating.

### 2025-07-22 09:53 UTC: investigating
We are continuing to investigate this issue.

### 2025-07-22 12:07 UTC: monitoring
We have been seeing intermittent errors accessing the US-West-1 Sauce Labs dashboard. We have identified a solution and have deployed a fix for this issue. We are monitoring.

### 2025-07-22 13:19 UTC: resolved
After taking remedial action, the Sauce Labs dashboard is now stable and available. This incident is resolved.

### 2025-08-20 10:02 UTC: postmortem
### \*\*Dates:\*\*
Tuesday July 22d 2025, 07:28 UTC - 15:07 UTC.
### \*\*What happened:\*\*
The Sauce Labs dashboard for our US-West-1 datacenter was unavailable intermittently during the incident timeline.
### \*\*Why it happened:\*\*
This issue was caused by Cache poisoning via a specific header.
### \*\*How we fixed it:\*\*
The header settings were reviewed and fixed in our proxies.
### \*\*What we are doing to prevent it from happening again:\*\*
We have added stricter rules to prevent further cache poisoning attempts.

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