Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Airflow | < 3.3.1 |
Related Weaknesses (CWE)
References
- https://github.com/apache/airflow/pull/68422Issue TrackingPatch
- https://lists.apache.org/thread/z5mrdq6c60f2wyx4cc64cj8nv0dxd9loMailing ListVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-42358Mailing ListThird Party Advisory
FAQ
What is CVE-2026-54183?
CVE-2026-54183 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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, tu...
How severe is CVE-2026-54183?
CVE-2026-54183 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54183?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Airflow.