Small number of incoming GitHub Webhook failing

Incident Report for Buildkite

Resolved

The error rate has returned to normal levels.
Posted Oct 01, 2026 - 06:57 UTC

Monitoring

The mitigation is rolling out and we are seeing recovery. We will continue to monitor and provide an update.
Posted Oct 01, 2026 - 06:33 UTC

Identified

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.
Posted Oct 01, 2026 - 06:10 UTC
This incident affected: SCM Providers (GitHub Webhooks).
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