CVE-2026-48892: Apache Airflow

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Apache Airflow: before 3.3.0 (fixed in 3.3.0)

Published 2026-07-07. Last modified 2026-09-16.