Small number of incoming GitHub Webhook failing

What to do

• Check whether you use Buildkite GitHub Webhooks. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 47m it lasted.

  Anything that failed between 2026-10-01 06:10 UTC and 2026-10-01 06:57 UTC may need a replay.

• Subscribe to Buildkite's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=buildkite works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Buildkite 3

1. identifiedOct 1, 2026, 6:10 AM UTC

   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.

   provider

2. monitoringOct 1, 2026, 6:33 AM UTC

   The mitigation is rolling out and we are seeing recovery. We will continue to monitor and provide an update.

   provider

3. resolvedOct 1, 2026, 6:57 AM UTC

   The error rate has returned to normal levels.

   provider

Corrections

None so far.

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