CVE-2026-49487: Apache Airflow exposes deferred trigger kwargs in task-instance API responses
(updated )
In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task’s trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.
References
- github.com/advisories/GHSA-22hf-vx2v-gjff
- github.com/apache/airflow/commit/9101aa66754af052ba5010a5fce9f8fa4140e6c7
- github.com/apache/airflow/pull/67868
- github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-2088.yaml
- lists.apache.org/thread/qlw6pozlzlfhkvmbgqsbjlq6vj4v0pc4
- nvd.nist.gov/vuln/detail/CVE-2026-49487
Code Behaviors & Features
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