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GitHub Status – Disruption with some GitHub services

Disruption with some GitHub services

Incident Report for GitHub

Resolved

On December 22, 2025, between 22:01 UTC and 22:32 UTC, unauthenticated requests to github.com were degraded, resulting in slow or timed out page loads and API requests. Unauthenticated requests from Actions jobs, such as release downloads, were also impacted. Authenticated traffic was not impacted. This was due to a severe spike in traffic, primarily to search endpoints.

Our immediate response focused on identifying and mitigating the source of the traffic increase, which along with automated traffic management restored full service for our users.

We improved limiters for load to relevant endpoints and are continuing work to more proactively identify these large changes in traffic volume, improve resilience in critical request flows, and improve our time to mitigation.

Posted Dec 23, 2025 - 00:17 UTC

Update

All services at healthy levels. We're finalizing the change to prevent future degradations from the same source.

Posted Dec 23, 2025 - 00:06 UTC

Update

We're investigating elevated traffic affecting GitHub services, primarily impacting logged-out users with some increased latency on Issues. We're preparing additional mitigations to prevent further spikes.

Posted Dec 22, 2025 - 23:32 UTC

Update

We are experiencing elevated traffic affecting some GitHub services, primarily impacting logged-out users. We're actively investigating the full scope and working to restore normal service. We'll post another update by 23:45 UTC.

Posted Dec 22, 2025 - 22:57 UTC

Update

Issues is experiencing degraded performance. We are continuing to investigate.

Posted Dec 22, 2025 - 22:48 UTC

Investigating

We are investigating reports of impacted performance for some GitHub services.

Posted Dec 22, 2025 - 22:31 UTC

This incident affected: Issues.