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GitHubIncident detail
Webhook APIs and UI Degraded
Resolved incidentMinor1 affected service
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Timeline
Incident updates
Every update GitHub posted, oldest to newest, exactly as it appeared on their official status page.
Investigating
We are investigating reports of degraded performance for Webhooks
Monitoring
The degradation affecting Webhooks has been mitigated. We are monitoring to ensure stability.
Resolved
On May 28, 2026, between 00:54 UTC and 01:19 UTC, some users experienced errors when interacting with the Webhooks API, including webhook delivery history and configuration endpoints. On average, the error rate was 0.28% and peaked at 0.45%. This was due to a bug that caused a single Kubernetes pod to enter a CrashLoopBackOff after receiving a 500 with an empty response body from Cosmos DB.<br /><br />We mitigated the incident by restarting the service. To prevent future incidents, we are pushing a change to handle this response scenario from Cosmos DB appropriately.
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