Apache Airflow exposes sensitive JSON Variable values through the Bulk Variables API
Summary
CVE-2026-48828: Apache Airflow exposes sensitive JSON Variable values through the Bulk Variables API. Affects apache-airflow versions < 3.3.0. Fixed in 3.3.0. How to fix ↓
Also tracked for
- airflow · Bitnami
The same CVE-2026-48828 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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The Bulk Variables API in Apache Airflow called the redactor without passing the variable's key, so the key-based should_hide_value_for_key check (which triggers on secret-suffixed key names like *_password / *_token / *_secret) could not fire for JSON-decodable variable values. An authenticated UI/API user with bulk Variable read permission could retrieve plaintext values from JSON variables whose key would otherwise trigger redaction. Affects deployments that store sensitive values in JSON-typed Airflow Variables under secret-suffixed key names. Users are advised to upgrade to apache-airflow 3.3.0 or later (the fix landed on main after 3.2.2; no 3.2.x backport).
How To Fix
Latest published version: 3.3.2 as of 22 Oct 2026
pip install --upgrade "apache-airflow==3.3.2"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
3.3.0
This is the first release that contains the fix.
pip install --upgrade "apache-airflow==3.3.0"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
References
Related vulnerabilities
Recent vulnerabilities recorded for apache-airflow.
