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CVE-2026-86792

Estado: AnalizadaAlta (8.8)—

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.

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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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad en proveedor Kafka de Airflow que permite escalada desde worker a scheduler mediante `import_string` sin allowlist en conexiones. AV:N/PR:L (red con privilegios limitados) → T1210. Impacto: ejecución arbitraria de código Python en el scheduler (T1059) y escalada de privilegios desde w

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementExecution PreventionDisable or Remove Feature or ProgramAuditUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (1)

Apache — Apache-airflow-providers-apache-kafka

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-86792",
  "cveTags": [],
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  "lastModified": "2026-09-18T14:30:06.090",
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