# CircleCI: Major incident: GitHub Incidents impacting CircleCI functionality

**Summary:** CircleCI reported major degradation affecting pipeline triggering and login, with possible failures reporting running jobs’ status to GitHub Pull Requests. The incident ran from 2026-08-17 14:04 UTC to 2026-08-17 19:05 UTC, lasting 5 h 1 min. CircleCI attributed the disruption to a GitHub incident and resolved it after GitHub’s APIs appeared to be operating normally. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-08-17 14:04 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/mk4lvmlx939f](https://stspg.io/mk4lvmlx939f)
- [Company: CircleCI](https://rewindex.com/company/circleci.md)
- Versions: before (none: first archived) → after incident\_version:179/h3cw7x07ggf2@cf5d307ceb6a
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ GitHub Incidents impacting CircleCI functionality
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-17 14:04 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-17 19:05 UTC
```

**6. Added: Update** (identified) · 2026-08-17 14:04 UTC

```diff
+ GitHub has reported an incident that is impacting CircleCI pipeline triggering and logging in: https://www.githubstatus.com/incidents/zkxwbgr0cnmx Jobs that are in flights are running, but status reporting to GitHub Pull Requests may fail.
```

**7. Added: Update** (identified) · 2026-08-17 14:25 UTC

```diff
+ We are continuing to see high error rates on GitHub APIs and reduced webhook traffic. We will continue to provide updates as more information becomes available.
```

**8. Added: Update** (identified) · 2026-08-17 15:49 UTC

```diff
+ We are continuing to see high error rates on GitHub's APIs and reduced webhook traffic. Customers using GitHub as their VCS may experience impact to their CircleCI platform experience as a result. This is directly linked to the incident GitHub is experiencing: https://www.githubstatus.com/incidents/zkxwbgr0cnmx We will provide updates as more information becomes available.
```

**9. Added: Update** (monitoring) · 2026-08-17 16:22 UTC

```diff
+ We have started to observe improved stability in GitHub APIs. We will continue to monitor as they recover.
```

**10. Added: Update** (monitoring) · 2026-08-17 17:01 UTC

```diff
+ GitHub API error rates and latencies appear to have recovered. We will continue to monitor.
```

**11. Added: Update** (monitoring) · 2026-08-17 17:23 UTC

```diff
+ Some of GitHub's APIs are still degraded, resulting in a small number of failures relating to commit status updates and hook processing. We will continue to do our best to mitigate these effects.
```

**12. Added: Update** (resolved) · 2026-08-17 19:05 UTC

```diff
+ GitHub's APIs appear to be operating normally.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-17 14:04 UTC | Major incident: GitHub Incidents impacting CircleCI functionality (this change) | degradation |

All CircleCI changes: [timeline](https://rewindex.com/company/circleci/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/if07a92160c0000 · Markdown: https://rewindex.com/change/if07a92160c0000.md · JSON: https://rewindex.com/api/v1/changes/if07a92160c0000 · Generated 2026-10-18T02:29:15.676Z