CVE-2026-40963 json
Apache Airflow: DAG authorization bypass on /ui/structure/structure_data
published 2026-06-01 5 mo ago modified 2026-11-03 6 d ago also BIT-airflow-2026-40963 , EUVD-2026-33596 , GHSA-gprj-xvq8-w53q , PYSEC-2026-2349
- cvss
- 3.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
The structure_data endpoint in the Airflow UI returned external dependency graph nodes for linked Dags without checking whether the caller had read permission on those linked Dags. An authenticated UI/API user authorized for one Dag could enumerate linked Dag IDs and dependency metadata for other Dags they were not authorized to read. Affects deployments that rely on per-Dag read scoping to keep Dag dependency topology private across teams. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.
Patch / fix
- pypi apache-airflow 3.2.2
- bitnami airflow 3.2.2
- Apache Software Foundation Apache Airflow 3.2.2
- github.com/apache/airflow#65342 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow | >=3.0.0, <3.2.2 |
3.2.2 |
| bitnami | airflow | >=3.0.0, <3.2.2 |
3.2.2 |
Affected products
- Apache Software Foundation Apache Airflow
Classification
- Weakness
-
- CWE-285 Improper Authorization
References
-
github.com
/apache/airflow/pull/65342
patch, web, issue-tracking
-
lists.apache.org
/thread/s907bhsksc37m59f0loqjcp1ryobrr60
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/05/31/3
web, mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-40963
advisory, web
-
github.com
/apache/airflow
package
-
pypi.org
/project/apache-airflow
package
-
github.com
/advisories/GHSA-gprj-xvq8-w53q
advisory
Sources
- CVE List CVE-2026-40963
- GitHub Advisory GHSA-gprj-xvq8-w53q
- NVD CVE-2026-40963
- OSV BIT-airflow-2026-40963
- OSV PYSEC-2026-2349
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.