Service Disruption affecting Authentication, Schema Registry, ksqlDB, and Flink in AWS us-east-1

Incident Report for Confluent Cloud

Resolved

The systems have recovered and Confluent Cloud is fully operational.
Posted Sep 09, 2026 - 14:56 UTC

Monitoring

We have applied a mitigation for the issue affecting Schema Registry, Authentication, ksqlDB, Flink, and Kafka operations in AWS us-east-1. Services are recovering and we are monitoring closely.
Posted Sep 09, 2026 - 06:41 UTC

Update

Confluent is continuing to work on the service disruption in AWS us-east-1. No immediate ETA for resolution is available.
Posted Sep 09, 2026 - 01:45 UTC

Update

Confluent is continuing to work on remediating the service disruption in AWS us-east-1.
Posted Sep 09, 2026 - 00:01 UTC

Update

We continue to work on remediating the service disruption in AWS us-east-1. Not confirmed ETA at this time.
Posted Sep 08, 2026 - 17:41 UTC

Update

We continue to work on remediating the service disruption in AWS us-east-1.

Confirmed impact:

- Authentication — a subset of requests may fail
- Schema Registry — authorization errors on a subset of requests
- ksqlDB — a subset of queries/requests may be affected
- Flink — statement management operations (create/update/delete) are degraded, and some running Flink jobs may fail or restart
- Kafka operations (create, delete etc)

Not impacted: Kafka cluster data-plane operations are not affected by this incident. This issue is isolated to the AWS us-east-1 region; other regions are unaffected
Posted Sep 08, 2026 - 15:55 UTC

Identified

The issue has been identified and a fix is being implemented.
Posted Sep 08, 2026 - 14:06 UTC

Investigating

We are currently investigating this issue.
Posted Sep 08, 2026 - 11:38 UTC

Identified

The issue has been identified and a fix is being implemented.
Posted Sep 08, 2026 - 10:37 UTC

Investigating

We are investigating a service disruption affecting multiple services in AWS us-east-1 region. Affected customers may experience authentication failures, errors accessing Schema Registry, or issues with KSQL and Flink workloads. We are actively investigating the root cause and working toward mitigation.
Posted Sep 08, 2026 - 09:17 UTC
This incident affected: Confluent Cloud.