Outage in Buildkite
Small number of incoming GitHub Webhook failing
Resolved MinorIncident Report
Summary AI Generated
A small number of incoming GitHub webhook deliveries to Buildkite pipelines were rejected for 48 minutes, preventing associated builds from being created. This affected GitHub.com users, particularly their ability to receive status checks, while GitHub Enterprise Server and other SCM providers were unaffected. The cause was identified, a mitigation was deployed, and error rates returned to normal upon resolution.
Since 2026-09-30 20:52:36 UTC on 30 September, small amount of incoming GitHub webhook deliveries to Buildkite pipelines are being rejected, so the related builds are not created.
For people who use GitHub.com may affect ability to receive status checks. We have identified the cause and are deploying a mitigation. This does not affect GitHub Enterprise Server and other SCM providers.
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Latest Updates ( sorted recent to last )
RESOLVED
11 days ago - at 10/01/2026 06:57AM
The error rate has returned to normal levels.
MONITORING
11 days ago - at 10/01/2026 06:33AM
The mitigation is rolling out and we are seeing recovery. We will continue to monitor and provide an update.
IDENTIFIED
11 days ago - at 10/01/2026 06:10AM
Since 2026-09-30 20:52:36 UTC on 30 September, small amount of incoming GitHub webhook deliveries to Buildkite pipelines are being rejected, so the related builds are not created.
For people who use GitHub.com may affect ability to receive status checks. We have identified the cause and are deploying a mitigation. This does not affect GitHub Enterprise Server and other SCM providers.
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