Nearly eight-hour GitHub.com outage due to misconfigured Istio autoscaling
GitHub experienced an outage on 17 August 2026 lasting 7 h 47 min (13:28–21:15 UTC), with error rates of up to 50 % for archives and 20 % for the API; the cause was a misconfigured Istio autoscaling policy and overloaded HAProxy nodes, which affected Actions, Copilot and sign-in.