Severity: moderate Affected versions:
- Apache Airflow (apache-airflow) before 3.3.0 Description: 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. Credit: Omkhar Arasaratnam (@omkhar) (finder) Jarek Potiuk (remediation developer) References: https://github.com/apache/airflow/pull/67622 https://airflow.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-48892
