# Disruption with Dependabot Alerts

- Provider: [GitHub](https://down.guide/github)
- Level: confirmed
- Impact: Degraded
- lasted 3h 53m
- started 2026-10-23 14:58 UTC
- id: DWN-cbb360e174
- Official page: https://stspg.io/zdk3zqt69fnz

## Updates from GitHub
### 2026-10-23 14:58 UTC: investigating
We are investigating reports of impacted performance for some GitHub services.

### 2026-10-23 15:00 UTC: investigating
We’re investigating delays in some Dependabot alerts closing after affected repositories have been updated to address a vulnerability. Alert processing is backed up. We’ll share more information as it becomes available.

### 2026-10-23 15:39 UTC: investigating
We’re scaling alert processing capacity to reduce the backlog causing delays in some Dependabot alerts closing after affected repositories have been updated. We’re continuing to monitor and will share another update as more information becomes available.

### 2026-10-23 16:11 UTC: investigating
We’re continuing to investigate delays in some Dependabot alerts closing after affected repositories are updated. Alert processing remains backed up, and additional processing capacity is rolling out to help reduce the backlog. We’re monitoring the rollout and will share another update as we learn more.

### 2026-10-23 16:43 UTC: investigating
We’re continuing to investigate delays in some Dependabot alerts closing after affected repositories are updated. Alert processing remains backed up, and additional processing capacity is rolling out to help reduce the backlog. We’re monitoring progress and will share another update as we learn more.

### 2026-10-23 17:27 UTC: investigating
Some Dependabot alerts continue to be delayed in closing after repository updates address a vulnerability. 
We're continuing to investigate and work to restore normal processing.

### 2026-10-23 18:36 UTC: monitoring
The degradation has been mitigated. We are monitoring to ensure stability.

### 2026-10-23 18:51 UTC: resolved
We identified that an advisory-publication driven fan-out was overwhelming Dependabot alert processing on repositories by saturating the queue with its own events, delaying processing of events related to repository pushes.
We have now isolated this fan-out and applied a throttle so it runs at a fixed rate and cannot delay other events. This remediation has successfully prevented a new fan-out process impacting users.

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