CVE-2026-26929
Apache Airflow: Wildcard DagVersion Listing Bypasses Per‑DAG RBAC and Leaks Metadata
7.5
HIGH
CVSS 3.1
EPSS 0.05%
Description
Apache Airflow versions 3.0.0 through 3.1.7 FastAPI DagVersion listing API does not apply per-DAG authorization filtering when the request is made with dag_id set to "~" (wildcard for all DAGs). As a result, version metadata of DAGs that the requester is not authorized to access is returned. Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.
How to fix CVE-2026-26929
To remediate CVE-2026-26929, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.8 or later
- —upgrade to 3.1.8 or later
- —upgrade to 3.1.8 or later
Is CVE-2026-26929 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 3.0.0, < 3.1.8
- >= 3.0.0, < 3.1.8
- >= 3.0.0, < 3.1.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |