Medium [CVE-2026-48892] Apache Airflow: Config API leaks per-key secrets backend kwargs - masker bypass on synthetic options
This medium-severity Apache Software Foundation advisory covers CVE-2026-48892 affecting Apache Airflow.
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Summary
The Config API in Apache Airflow surfaced per-key secrets-backend overrides (environment variables like `AIRFLOW__SECRETS__BACKEND_KWARG__SECRET_ID` and `AIRFLOW__WORKERS__SECRETS_BACKEND_KWARG__SECRET_ID`) as synthetic config options whose option names were not in `sensitive_config_values`, so the masker did not redact them.
An authenticated UI/API user with Config read permission could retrieve plaintext secrets-backend credentials (Vault `role_id` / `secret_id`, etc.) from the Config API output. Affects deployments that configure secrets backends via per-key environment overrides.
Users are advised to upgrade to `apache-airflow` 3.3.0 or later.
- Apache Airflow before 3.3.0
Official advisory · high-confidence parse· fetched 1 month ago·verify at source
Mitigation checklist
- Affects deployments that configure secrets backends via per-key environment overrides.
- Users are advised to upgrade to `apache-airflow` 3.3.0 or later.
Official advisory · high-confidence parse· fetched 1 month ago·verify at source
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