CVE-2026-38743 json
Apache Airflow: Dags endpoint might provide access to otherwise inaccessible entities
published 2026-04-24 6 mo ago modified 2026-11-03 6 d ago also BIT-airflow-2026-38743 , EUVD-2026-25418 , GHSA-p3v3-229h-mc63 , PYSEC-2026-2351
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
The authenticated /ui/dags endpoint did not enforce per-DAG access control on embedded Human-in-the-Loop (HITL) and TaskInstance records: a logged-in Airflow user with read access to at least one DAG could retrieve HITL prompts (including their request parameters) and full TaskInstance details for DAGs outside their authorized scope. Because HITL prompts and TaskInstance fields routinely carry operator parameters and free-form context attached to a task, the leak widens visibility of DAG-run data beyond the intended per-DAG RBAC boundary for every authenticated user.
Users are recommended to upgrade to version 3.2.1 , which fixes this issue.
Patch / fix
- pypi apache-airflow 3.2.1rc1
- bitnami airflow 3.2.1
- Apache Software Foundation Apache Airflow 3.0.0, 3.2.1
- github.com/apache/airflow@fed4921 commit
- github.com/apache/airflow#64822 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow | <3.2.1rc1 |
3.2.1rc1 |
| bitnami | airflow | <3.2.1 |
3.2.1 |
Affected products
- Apache Software Foundation Apache Airflow
Classification
- Weakness
-
- CWE-1220 Insufficient Granularity of Access Control
References
-
github.com
/apache/airflow/pull/64822
patch, web, issue-tracking
-
github.com
/apache/airflow/commit/fed4921098d51fd3ec17b7f5cff80f6c36fd05e2
web
-
lists.apache.org
/thread/sk2wj0x48o8qb4p7c47gvnhjbm0mg396
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2026/04/24/3
web, mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-38743
advisory, web
-
github.com
/apache/airflow
package
-
pypi.org
/project/apache-airflow
package
-
github.com
/advisories/GHSA-p3v3-229h-mc63
advisory
Sources
- CVE List CVE-2026-38743
- GitHub Advisory GHSA-p3v3-229h-mc63
- NVD CVE-2026-38743
- OSV BIT-airflow-2026-38743
- OSV PYSEC-2026-2351
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.