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GitHub Blog
GitHub availability report
GitHub faced a significant outage affecting multiple services due to issues with GitHub Actions. Affected services included APIs, web UI, and workflow executions, leading to a peak 5xx error rate of nearly 96%. The company is conducting a thorough investigation while reinforcing its infrastructure to minimize future risks. Changes to its architecture will enhance capacity and resilience, allowing better absorption of operational strains.
MonitorConfidence: HighShort term horizonReputational risk: High
Published 12 Aug 2026, 22:45 UTC13 min read
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Summary
TL;DR
- GitHub Actions incident caused major downtime on August 6, affecting user operations.
- Peak error rates reached approximately 96% for impacted users.
- GitHub is analyzing root causes and implementing architectural changes for improved reliability.
- Over 50% of read traffic is now served from Azure Central US.
- New safeguards and monitoring processes are in place to mitigate future incidents.
Interesting facts
- This outage affected 84% of active tenants during peak times.
- GitHub is moving towards a fully independent Azure capacity to reduce reliance on shared infrastructure.