{"id":"CVE-2026-86792","title":"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 …","summary":"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 …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-470"],"vendor":"apache","product":"apache-airflow-providers-apache-kafka","affected":["apache-airflow-providers-apache-kafka >= 1.15.0, < 2.0.0"],"patched":["apache-airflow-providers-apache-kafka 2.0.0"],"published":"2026-09-16","updated":"2026-09-18","sourceUpdated":"2026-09-18T14:30:06.090","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86792","references":[{"url":"https://github.com/apache/airflow/pull/72208","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/jl4gpok02313yh3rvtvj8qbo11c6zpr2","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/jl4gpok02313yh3rvtvj8qbo11c6zpr2?users@airflow.apache.org","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/15/15","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org","osv","pip"],"epss":0.01156,"epssPercentile":0.65676,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-17T19:38:56.093836Z"},"ingestedAt":"2026-09-16T09:53:11.605Z","aliases":["PYSEC-2026-3986"],"ecosystem":"pip","slug":"CVE-2026-86792","body":"## Overview\n\nApache 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.\n\n## Affected\n\n- `apache-airflow-providers-apache-kafka >= 1.15.0, < 2.0.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `apache-airflow-providers-apache-kafka 2.0.0`\n\n## Package advisory (CVE-2026-86792)\n\nAffected packages:\n\n- `apache-airflow-providers-apache-kafka >= 1.15.0, < 2.0.0`\n\nPatched in:\n\n- `apache-airflow-providers-apache-kafka 2.0.0`\n\nSource: https://osv.dev/vulnerability/PYSEC-2026-3986","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[{"seq":206566,"id":"CVE-2026-86792","ts":1789676928961,"field":"cvss","old":null,"new":"8.8"},{"seq":206565,"id":"CVE-2026-86792","ts":1789676928961,"field":"severity","old":"none","new":"high"}]}