Apache Airflow: Dags endpoint might provide access to otherwise inaccessible entities
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 3.0.0
- Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 3.2.1
- Fix · GHSA-p3v3-229h-mc63 apache-airflow (PyPI) Fixed in 3.2.1rc1 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache Airflow 3.0.0, 3.2.1
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-29374 Apache Airflow: Assets graph view bypasses DAG level access control displaying unrelated…Priority LOW 20
Timeline
- 2026-10-02 Threatist record created from CVE-2026-38743
- 2026-10-03 Alias added: GHSA-p3v3-229h-mc63
- 2026-11-03 Fix available: [email protected], [email protected] · CNA
References
Advisory 3
More Apache Airflow vulnerabilities
- TI-2020-10905 Missing authentication in Apache Airflow KEVCVSS 3.1CRITICAL 9.8
- TI-2020-09638 OS command injection in Apache Airflow KEVCVSS 3.1HIGH 8.8
- TI-2022-19017 Apache Airflow <2.4.0 has an RCE in a bash example CVSS 3.1HIGH 8.8
- TI-2021-16140 Apache Airflow: Variable Import endpoint missed authentication check CVSS 3.1CRITICAL 9.8
- TI-2022-08169 Apache Airflow: RCE in example DAGs CVSS 3.1HIGH 8.8
- TI-2024-26776 Apache Airflow: DAG Author Code Execution possibility in airflow-scheduler CVSS 3.1HIGH 8.8
Sources
- CVE-2026-38743 · CVE Program
- CVE-2026-38743 · NVD
- FIRST EPSS
- GHSA-p3v3-229h-mc63 · GitHub Advisory Database · CC BY 4.0
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