Medium [CVE-2026-59244 +1] Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI
This medium-severity Apache Software Foundation advisory covers CVE-2026-68970 and CVE-2026-59244 affecting Apache Airflow.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.
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Summary
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.
- Apache Airflow before 3.3.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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