Apache Airflow's Task SDK did not mask the contents of a Variable whose JSON value is a list, so secrets stored in that shape appeared in cleartext in task logs and in the Rendered Templates UI. Masking was applied only when the deserialized value was a string or a dict; a list at the top level matched neither and was returned unmasked. Any authenticated user able to read the logs or rendered templates of a task that references such a Variable could recover the values, with no special configuration required. This is the list-shaped counterpart of CVE-2026-59244, whose fix covered the dict case only, so deployments that upgraded in response to that advisory remain affected and must upgrade again. Users are advised to upgrade to apache-airflow 3.3.1 or later.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/apache/airflow/pull/70891 Issue Tracking, Patch
- https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Mailing List, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · apacheNVD modified 2026-10-23 20:10
Affected (CPE criteria) 1
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*
References 3
- https://github.com/apache/airflow/pull/70891 Issue Tracking, Patch
- https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Mailing List, Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-59244 Mailing List, Third Party Advisory