Scheduler code execution via unrestricted callback imports
Published Sep 16, 2026 · Updated Sep 16, 2026
Code injection in Apache Airflow Apache Kafka provider 1.15.0 through 1.16.0 allows remote authenticated users to execute scheduler code. KafkaBaseHook converts dotted-path callback values from a connection's extra field with import_string and passes the resulting callables to confluent-kafka without an allowlist. Exploitation requires permission to edit connections and an enabled Kafka event producer; DAG-run events invoke the callback in the scheduler, while Google Managed Kafka is not exposed.
Summary
What happened
Code injection in Apache Airflow Apache Kafka provider 1.15.0 through 1.16.0 allows remote authenticated users to execute scheduler code. KafkaBaseHook converts dotted-path callback values from a connection's extra field with import_string and passes the resulting callables to confluent-kafka without an allowlist. Exploitation requires permission to edit connections and an enabled Kafka event producer; DAG-run events invoke the callback in the scheduler, while Google Managed Kafka is not exposed.
The record
- CVE
- CVE-2026-86792
- Published
- Sep 16, 2026
- Updated
- Sep 16, 2026
- Vendor
- Apache Software Foundation
- Product
- apache-airflow-providers-apache-kafka
- Classifications
- T1059.006
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 16, 2026CVE publishedPublication date reported by the CVE source.
- Sep 16, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=1.15.0 <2.0.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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