Medium severity · published Apr 24, 2026
CVE-2026-40690
Apache Airflow: Assets graph view bypasses DAG level access control displaying unrelated topologies and all DAGs names to unauthorized users
4.3
CVSS
0.4%
EPSS
No
On KEV
Description
The asset dependency graph did not restrict nodes by the viewer's DAG read permissions: a user with read access to at least one DAG could browse the asset graph for any other asset in the deployment and learn the existence and names of DAGs and assets outside their authorized scope.
Users are recommended to upgrade to version 3.2.1, which fixes this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% 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
before 3.2.1 · source: vendor
AI
Airflow · Apache
before 3.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40690
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40690
Issue Tracking
https://github.com/apache/airflow/pull/65273
Mailing List
https://lists.apache.org/thread/bqt7y4g2cpj396b0sd20lv510ff19ndl
Mailing List
http://www.openwall.com/lists/oss-security/2026/04/24/4
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