CVE-2026-41084: CWE-639: Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Airflow
CVE-2026-41084 is an authorization bypass vulnerability in Apache Airflow's bulk Task Instances API. The API incorrectly authorizes requests based on the dag_id in the URL path while processing task instances for dag_id and dag_run_id values from the request body. This allows an authenticated user with edit permissions on one DAG to modify task instance states in other DAGs by manipulating the request body. The issue affects deployments that enforce per-DAG edit scopes to isolate task instance state changes between teams. The vulnerability is present in Apache Airflow version 3.2.0. Users are advised to upgrade to version 3.2.2 or later to remediate the issue.
AI Analysis
Technical Summary
Apache Airflow's bulk Task Instances API (PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances) performs authorization checks against the dag_id extracted from the URL path but applies changes based on dag_id and dag_run_id values from the request body. This discrepancy allows an authenticated user with edit permissions on one DAG to bypass authorization controls and mutate task instance states in other DAGs by specifying different dag_id and dag_run_id values in the request body. This vulnerability affects deployments relying on per-DAG edit-scope isolation. The issue is present in Apache Airflow version 3.2.0 and fixed in version 3.2.2 and later.
Potential Impact
An authenticated user with edit permissions on a specific DAG can modify task instance states in other DAGs without proper authorization. This could lead to unauthorized changes in workflow execution states, potentially disrupting operations or causing data integrity issues within affected DAGs. The vulnerability does not impact confidentiality or availability but has a high impact on integrity.
Mitigation Recommendations
A fix is available in Apache Airflow version 3.2.2 and later. Users should upgrade affected deployments from version 3.2.0 to 3.2.2 or newer to remediate this authorization bypass vulnerability. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-41084: CWE-639: Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Airflow
Description
CVE-2026-41084 is an authorization bypass vulnerability in Apache Airflow's bulk Task Instances API. The API incorrectly authorizes requests based on the dag_id in the URL path while processing task instances for dag_id and dag_run_id values from the request body. This allows an authenticated user with edit permissions on one DAG to modify task instance states in other DAGs by manipulating the request body. The issue affects deployments that enforce per-DAG edit scopes to isolate task instance state changes between teams. The vulnerability is present in Apache Airflow version 3.2.0. Users are advised to upgrade to version 3.2.2 or later to remediate the issue.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache Airflow's bulk Task Instances API (PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances) performs authorization checks against the dag_id extracted from the URL path but applies changes based on dag_id and dag_run_id values from the request body. This discrepancy allows an authenticated user with edit permissions on one DAG to bypass authorization controls and mutate task instance states in other DAGs by specifying different dag_id and dag_run_id values in the request body. This vulnerability affects deployments relying on per-DAG edit-scope isolation. The issue is present in Apache Airflow version 3.2.0 and fixed in version 3.2.2 and later.
Potential Impact
An authenticated user with edit permissions on a specific DAG can modify task instance states in other DAGs without proper authorization. This could lead to unauthorized changes in workflow execution states, potentially disrupting operations or causing data integrity issues within affected DAGs. The vulnerability does not impact confidentiality or availability but has a high impact on integrity.
Mitigation Recommendations
A fix is available in Apache Airflow version 3.2.2 and later. Users should upgrade affected deployments from version 3.2.0 to 3.2.2 or newer to remediate this authorization bypass vulnerability. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-04-16T18:11:57.535Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1d4e71e29bf47b50cd4973
Added to database: 06/01/2026, 09:18:41 UTC
Last enriched: 07/10/2026, 09:59:20 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 62
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