CVE-2026-48892Apache Airflow: Config API leaks per-key secrets backend kwargs - masker bypass on synthetic options

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/apache/airflow/pull/67622 patchIssue Tracking
• https://lists.apache.org/thread/pq5yy40079h6tzh3fxvw28dd8dbk72hk vendor-advisoryVendor Advisory
• http://www.openwall.com/lists/oss-security/2026/07/07/4 Third Party Advisory