Severity: moderate Affected versions:
- Apache Airflow Apache Kafka provider (apache-airflow-providers-apache-kafka) 1.15.0 before 2.0.0 Description: Apache Airflow Apache Kafka provider versions 1.15.0 before 2.0.0 resolve dotted-path strings found in a Kafka connection's `extra` field into Python callables via `import_string`, with no allowlist, and hand them to the confluent-kafka client which invokes them. Deployments that have enabled the Kafka event producer — `dag_run_events_enabled` or `task_instance_events_enabled`, both disabled by default — build that client inside the scheduler process, so a user whose only privilege is editing Airflow connections gains arbitrary code execution in the control plane; the Airflow security model limits connection-configuration users to code execution on workers, not the scheduler. Deployments using Google Managed Kafka are not affected, because that code path overwrites any user-supplied `oauth_cb`; plain brokers and Amazon MSK are exposed. Users are recommended to upgrade to apache-airflow-providers-apache-kafka 2.0.0 or later, which adds an allowlist configuration option for connection-string callbacks. Credit: Claude Security Scans (tool) Christos Bisias (remediation developer) References: https://github.com/apache/airflow/pull/72208 https://airflow.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-86792
