CVE-2026-68970 Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI
Authenticated users can view unmasked secrets stored as list-shaped Variables in Apache Airflow task logs and rendered templates.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-68970?
CVE-2026-68970 is a medium-severity vulnerability in Apache Airflow, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-312
Which versions are affected by CVE-2026-68970?
4 open source packages ship an affected version, including apache-airflow and airflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
apache-airflow PyPI | All versions | 3.3.1 |
apache-airflow PyPI | All versions | 3.3.1 |
apache-airflow PyPI | All versions | 3.3.1 |
airflow Bitnami | All versions | 3.3.1 |
Products include Apache Airflow.
How do I fix CVE-2026-68970?
Upgrade apache-airflow to 3.3.1 or later.
Is CVE-2026-68970 being exploited?
There is no known exploitation of CVE-2026-68970 in the wild and no public exploit code.
Other vulnerabilities in Apache Airflow
- CVE-2020-13927 Apache Airflow's Experimental API Authentication Bypass
- CVE-2020-11978 Apache Airflow Command Injection
- CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()
- CVE-2023-25754 Apache Airflow: Privilege escalation using airflow logs
- CVE-2023-22884 Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow
Sources
Also known as BIT-airflow-2026-68970, CLEANSTART-2026-GP65571, CLEANSTART-2026-UV14417, ECHO-66ca-b82c-a1c7, GHSA-f3c2-j7g8-vpp8, MINI-66mh-p266-qw55 and 2 more.