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Medium severity · published Mar 17, 2026
CVE-2026-26929
Apache Airflow: Wildcard DagVersion Listing Bypasses Per‑DAG RBAC and Leaks Metadata
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Airflow · Apache Software Foundation
3.0.0 before 3.1.8 · source: vendor
AI
Airflow · Apache
3.0.0 before 3.1.8 · source: NVD
Affected product
AA
Apache Airflow
Apache Software Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26929
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26929
Issue Tracking
https://github.com/apache/airflow/pull/61675
Mailing List
https://lists.apache.org/thread/g5o6khx83jwqvdyn0mlyb0krt35cs9ss
Mailing List
http://www.openwall.com/lists/oss-security/2026/03/17/4
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