CVE-2026-38743: CWE-1220: Insufficient Granularity of Access Control in Apache Software Foundation Apache Airflow
CVE-2026-38743 is an access control vulnerability in Apache Airflow affecting the /ui/dags endpoint. Authenticated users with read access to any DAG could access Human-in-the-Loop prompts and TaskInstance details for DAGs outside their authorized scope. This exposure allows unauthorized visibility into operator parameters and task context data beyond intended per-DAG RBAC boundaries. The issue is fixed in Apache Airflow version 3. 2. 1.
AI Analysis
Technical Summary
The vulnerability in Apache Airflow involves insufficient granularity of access control on the /ui/dags endpoint. Specifically, the endpoint failed to enforce per-DAG access restrictions on embedded Human-in-the-Loop (HITL) prompts and TaskInstance records. As a result, any authenticated user with read access to at least one DAG could retrieve sensitive data related to other DAGs they are not authorized to view. This includes request parameters and full TaskInstance details, which may contain operator parameters and free-form context attached to tasks. The flaw expands visibility of DAG-run data beyond the intended role-based access control (RBAC) boundaries. The Apache Software Foundation recommends upgrading to version 3.2.1 to remediate this issue.
Potential Impact
The vulnerability allows unauthorized disclosure of sensitive DAG-run data, including HITL prompts and TaskInstance details, to authenticated users who should not have access. This could lead to information leakage of operator parameters and task context, potentially exposing sensitive operational details. There is no indication of remote code execution or privilege escalation. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Users should upgrade Apache Airflow to version 3.2.1, which addresses this access control issue. No other mitigation or temporary workaround is indicated. Patch status is not explicitly confirmed in the vendor advisory, but the recommendation to upgrade to 3.2.1 implies an official fix is available in that version.
CVE-2026-38743: CWE-1220: Insufficient Granularity of Access Control in Apache Software Foundation Apache Airflow
Description
CVE-2026-38743 is an access control vulnerability in Apache Airflow affecting the /ui/dags endpoint. Authenticated users with read access to any DAG could access Human-in-the-Loop prompts and TaskInstance details for DAGs outside their authorized scope. This exposure allows unauthorized visibility into operator parameters and task context data beyond intended per-DAG RBAC boundaries. The issue is fixed in Apache Airflow version 3. 2. 1.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Apache Airflow involves insufficient granularity of access control on the /ui/dags endpoint. Specifically, the endpoint failed to enforce per-DAG access restrictions on embedded Human-in-the-Loop (HITL) prompts and TaskInstance records. As a result, any authenticated user with read access to at least one DAG could retrieve sensitive data related to other DAGs they are not authorized to view. This includes request parameters and full TaskInstance details, which may contain operator parameters and free-form context attached to tasks. The flaw expands visibility of DAG-run data beyond the intended role-based access control (RBAC) boundaries. The Apache Software Foundation recommends upgrading to version 3.2.1 to remediate this issue.
Potential Impact
The vulnerability allows unauthorized disclosure of sensitive DAG-run data, including HITL prompts and TaskInstance details, to authenticated users who should not have access. This could lead to information leakage of operator parameters and task context, potentially exposing sensitive operational details. There is no indication of remote code execution or privilege escalation. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Users should upgrade Apache Airflow to version 3.2.1, which addresses this access control issue. No other mitigation or temporary workaround is indicated. Patch status is not explicitly confirmed in the vendor advisory, but the recommendation to upgrade to 3.2.1 implies an official fix is available in that version.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-04-06T09:51:13.806Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69eb6ac987115cfb68343e6b
Added to database: 4/24/2026, 1:06:17 PM
Last enriched: 4/24/2026, 1:21:31 PM
Last updated: 4/24/2026, 2:52:03 PM
Views: 5
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