Disruption with viewing some repository pages from large organizations
Final update
Between October 23, 2025 19:27:29 UTC and October 27, 2025 17:42:42 UTC, users experienced timeouts when viewing repository landing pages. We observed the timeouts for approximately 5,000 users across less than 1,000 repositories including forked repositories. The impact was limited to logged in users accessing repositories in organizations with more than 200,000 members. Forks of repositories from affected large organizations were also impacted. Git operations were functional throughout this period. This was caused by feature flagged changes impacting organization membership. The changes caused unintended timeouts for organization membership count evaluations which led to repository landing pages not loading. The flag was turned off and a fix addressing the timeouts was deployed, including additional optimizations to better support organizations of this size. We are reviewing related areas and will continue to monitor for similar performance regressions.
Timeline
- Resolved · Oct 27, 17:51 UTC
Between October 23, 2025 19:27:29 UTC and October 27, 2025 17:42:42 UTC, users experienced timeouts when viewing repository landing pages. We observed the timeouts for approximately 5,000 users across less than 1,000 repositories including forked repositories. The impact was limited to logged in users accessing repositories in organizations with more than 200,000 members. Forks of repositories from affected large organizations were also impacted. Git operations were functional throughout this period. This was caused by feature flagged changes impacting organization membership. The changes caused unintended timeouts for organization membership count evaluations which led to repository landing pages not loading. The flag was turned off and a fix addressing the timeouts was deployed, including additional optimizations to better support organizations of this size. We are reviewing related areas and will continue to monitor for similar performance regressions.
More from GitHub
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2416:51 UTC | Disruption with billing information updates | minor | 3h 50m |
| Sep 2310:11 UTC | Incident across several services | minor | 18h 44m |
| Sep 2022:13 UTC | Incident with Pull Requests | minor | 1h 9m |
| Sep 1720:59 UTC | Elevated rate of errors for OpenAI models provided by Copilot | minor | 50m |
| Sep 1607:20 UTC | Degradation with Gemini 3.8 Flash | major | 10h 28m |
| Sep 1519:11 UTC | Disruption with some GitHub services | minor | 49m |
Also caused by configuration change
All| Started | Vendor | Incident | Impact | Duration |
|---|---|---|---|---|
| Sep 2423:36 UTC |  Render | Key Value service restartsRender | minor | 0m |
| Sep 2414:08 UTC |  HubSpot | The Salesforce integration is unavailable for some customersHubSpot | none | 7h 18m |
| Sep 2218:20 UTC |  Twilio | Phone Number APIs and Console Were Returning Incorrect 404 ResponsesTwilio | none | 0m |
| Sep 1622:30 UTC |  Cloudflare | Hyperdrive Elevated Origin Connection Failure RatesCloudflare | none | 0m |
| Sep 1211:04 UTC |  Slack | Some customers experiencing blurry image previews and download issuesSlack | minor | 8h 56m |
| Sep 1107:18 UTC |  Snowflake | INC20000213Snowflake | critical | 6h 1m |
Sources: vendors' own status pages, published postmortems and SEC 8-K Item 1.05 filings, read daily. Times as reported. Logos via logo.dev; trademarks belong to their owners.