GitHub reported this minor-impact incident on its official status page on Jun 5, 2026, 17:20 UTC. It was resolved after 5h 1m.
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On June 5, 2026, between 15:35 UTC and 16:45 UTC, 0.11% of authenticated REST API requests incorrectly returned “not found” responses. Impact was concentrated among - and significantly higher for - users authenticating with user-to-server tokens to access organization-owned repositories.Some users of our GitHub for Slack and GitHub for Microsoft Teams integrations saw their channel subscriptions removed as those systems interpreted the transient "not found" response as durable loss of access. Roughly 12% of organizations with active channel subscriptions were impacted, with ~2% of all channel subscriptions being removed.These issues were triggered by a change to an internal authorization component that did not correctly resolve access for user-to-server tokens against organization-owned repositories. We mitigated the incident by disabling the accompanying feature flag at 16:45 UTC, after which API responses returned to normal. We then restored all impacted Slack and Microsoft Teams cha
Our 5-minute checks didn't record a change in GitHub's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.
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GitHub reported 66 incidents in the last 90 days, 26 of them major or critical. A typical incident lasted 1h 21m. See GitHub's uptime and incident history