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.
Published: 2026-09-16
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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History

Fri, 18 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache apache-airflow-providers-apache-kafka
CPEs cpe:2.3:a:apache:apache-airflow-providers-apache-kafka:*:*:*:*:*:*:*:*
Vendors & Products Apache apache-airflow-providers-apache-kafka

Thu, 17 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache airflow Apache Kafka Provider
Vendors & Products Apache
Apache airflow Apache Kafka Provider

Thu, 17 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 15:00:00 +0000


Wed, 16 Sep 2026 10:30:00 +0000

Type Values Removed Values Added
References

Wed, 16 Sep 2026 09:30:00 +0000

Type Values Removed Values Added
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.
Title Apache Airflow Apache Kafka provider: Connection-editor remote code execution on the Scheduler via Kafka connection callback configuration
Weaknesses CWE-470
References

Subscriptions

Apache Airflow Apache Kafka Provider Apache-airflow-providers-apache-kafka
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-09-17T19:39:11.786Z

Reserved: 2026-09-08T11:54:21.118Z

Link: CVE-2026-86792

cve-icon Vulnrichment

Updated: 2026-09-17T19:39:08.895Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-16T10:16:55.060

Modified: 2026-09-18T14:30:06.090

Link: CVE-2026-86792

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T11:45:07Z

Weaknesses
  • CWE-470

    Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')