Overview
- GitHub confirmed widespread performance problems and degraded services on Monday, August 17, 2026, first acknowledging the issue around 9:40 a.m. EDT.
- Core features affected included API requests, Pull Requests, Webhooks, Issues and GitHub Actions, and Copilot also reported degraded availability.
- GitHub reported roughly 20% error rates for web and API traffic and about 50% failure rates for archive and raw repository downloads.
- Authentication and enterprise features such as SAML, OIDC, SCIM and Team Sync experienced disruptions that could block single sign-on and directory sync for organizations.
- The company said it identified the problematic component, applied corrective actions and implemented a fix, and engineers are monitoring recovery while the incident investigation and full postmortem are still pending; the outage highlights recent reliability challenges as GitHub scales and moves infrastructure toward Azure.