CVE-2026-54183 Apache Airflow: Airflow Variables were not masked in the UI for authenticated users
Authenticated users can view unmasked sensitive Airflow Variables in the UI due to incomplete masking logic for nested data structures.
- 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-2026-54183?
CVE-2026-54183 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 secrets masker hides values stored under sensitive key names when they are displayed in the UI. The masker's recursion-depth limit did not descend into values nested inside a list, tuple, or set beyond that limit, so an Airflow Variable holding such a deeply-nested value was shown unmasked in the Variables UI. The exposure is limited to the UI: any authenticated user who can see the Variable in the UI can already read its full value through the Variables REST API, so this does not disclose data the user could not otherwise obtain — the masking is a shoulder-surfing defense for the UI, not an access-control boundary.
This is an incomplete-fix follow-up to CVE-2026-42358, whose fix made only the dictionary walk unbounded; lists, tuples, and sets beyond the depth limit remained unmasked in the UI. Deployments that applied the CVE-2026-42358 fix should also upgrade to address this residual case. Upgrade to apache-airflow 3.3.1 or later.
Weakness: CWE-200
Which versions are affected by CVE-2026-54183?
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-2026-54183?
Upgrade apache-airflow to 3.3.1 or later.
Is CVE-2026-54183 being exploited?
There is no known exploitation of CVE-2026-54183 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-2026-54183, CLEANSTART-2026-NZ97420, ECHO-be77-b78c-718d, GHSA-g4qj-5vxv-wggf, MINI-cp5v-9x27-w57r, MINI-jpvx-3633-mg94 and 1 more.