GitHub Experiences Authentication and API Issues Affecting 15% of Traffic

GitHub experienced sporadic authentication failures on June 10, 2026, impacting approximately 15% of API traffic and causing degraded performance for Issues and API Requests services. The company began investigating around 15:20 UTC and provided multiple updates as the incident progressed. The degradation was mitigated by 15:46 UTC, though GitHub continued monitoring for stability.
GitHub reported a series of service disruptions on June 10, 2026, beginning with initial reports of degraded performance at 15:20 UTC. The investigation revealed sporadic authentication failures affecting approximately 15% of API traffic, with the Issues and API Requests services experiencing the most significant impact. GitHub provided regular updates over a 26-minute period as engineers worked to identify and resolve the root cause. By 15:46 UTC, the company announced that the degradation affecting Issues had been mitigated, though continued monitoring was underway to ensure stability across affected services.
What's missing
The root cause of the authentication failures was not disclosed in the available updates. The duration of the incident's full resolution and any impact assessment on users or services is not provided.
What different sources said
- Hacker NewsCenter
GitHub Authentication issues related to API requests
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