Small number of incoming GitHub Webhook failing
The error rate has returned to normal levels.
The latest update from Buildkite.
State
Resolved
Started
31 d ago
2026-10-01 06:10 UTC
Lasted
47 min
until 2026-10-01 06:57 UTC
Worst impact
Degraded
Timeline
3 updatesIdentified
23 min 48%
Monitoring
24 min 52%
Updates
Times in UTCAs posted by Buildkite
The error rate has returned to normal levels.
The mitigation is rolling out and we are seeing recovery. We will continue to monitor and provide an update.
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.
Affected components
2Buildkite in the last 90 days
Full historyIncidents in 90 days
26
Days with an incident
26
Median duration
1 h 9 min
This incident
32% shorter than the median
Other Buildkite incidents
All incidentsBuildkite·Elevated job dispatch times
We are seeing the job dispatch times are back to normal.
Buildkite·Increased latency and error rates
We identified that the majority of the impact was for a single customer and was caused by a database failover. We are investigating the cause and we will work with the impacted customer.
Buildkite·Elevated error rates
Between 23:16 and 23:27 we saw elevated error rates across our platform due to a scheduled database upgrade. That upgrade was not intended to cause any impact, but due to an unforeseen dependency on this database customers experienced error rates averages 2.5% during this period.
Buildkite·Delays with Hosted Agents jobs
Processing of Hosted Agents jobs are no longer delayed.
Buildkite·Buildkite response to the eMudhra certificate compromise
All services that power Buildkite have been updated to distrust the affected certificates, and updated releases are available for the components we distribute that run in customer infrastructure: Buildkite agent: v4.7.0 and v3.138.2 Buildkite CLI: v3.64.2 bktec: v3.3.1 elastic-ci-stack-for-aws: v7.8.0 agent-stack-k8s: v0.52.0 We recommend updating to these versions to prevent exposure to the affected certificate providers.
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