GitHub Enterprise Cloud US experienced a major incident on August 17, 2026 affecting prod-cus-01 - Issues (Issues) and prod-cus-01 - API Requests (API Requests) and 1 more component, lasting 6h 31m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Aug 17, 2026, 02:44 PM UTC
We are investigating reports of degraded performance for Actions
- investigating Aug 17, 2026, 03:08 PM UTC
We are currently investigating an issue affecting some GitHub Enterprise Cloud (GHEC) with data residency customers. Workflows that resolve Actions hosted on GitHub.com may fail to successfully download actions.
- investigating Aug 17, 2026, 04:59 PM UTC
The degradation affecting Actions has been mitigated. We are monitoring to ensure stability.
- investigating Aug 17, 2026, 05:36 PM UTC
Issues is experiencing degraded performance. We are continuing to investigate.
- investigating Aug 17, 2026, 05:50 PM UTC
Issues is operating normally.
- investigating Aug 17, 2026, 06:11 PM UTC
We identified the problematic component and have taken corrective actions, but we are seeing residual impact in the form of sporadic authentication failures. We are continuing to apply additional mitigations and investigate the remaining impact.
- investigating Aug 17, 2026, 06:48 PM UTC
API Requests is experiencing degraded performance. We are continuing to investigate.
- investigating Aug 17, 2026, 07:01 PM UTC
API Requests is operating normally.
- investigating Aug 17, 2026, 07:13 PM UTC
We are continuing to investigate sporadic authentication failures. We have partially disabled authentication token retries and have seen improvement, and we are monitoring impact before fully applying this mitigation.
- investigating Aug 17, 2026, 08:08 PM UTC
We are continuing to investigate sporadic failures affecting Copilot authentication in some applications. Copilot usage via the GitHub CLI and GitHub App are unaffected.
- investigating Aug 17, 2026, 08:45 PM UTC
We are continuing to apply mitigations to address sporadic Copilot authentication failures in some applications. We expect full recovery within the next 30 minutes. Copilot usage via the GitHub CLI and GitHub App are unaffected.
- resolved Aug 17, 2026, 09:15 PM UTC
This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.