CVE-2026-49296: CWE-639: Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Airflow
Apache Airflow versions before 3.3.0 have an authorization bypass vulnerability where a user authorized to read one DAG can access the source code of other DAGs located in the same source file. This occurs because the API endpoint and UI view return the entire source file without redacting unauthorized DAGs. Deployments that place multiple DAGs in a single file and rely on per-DAG access control are affected. Single-DAG-per-file deployments are not impacted. Upgrading to Apache Airflow 3.3.0 or later addresses this issue.
AI Analysis
Technical Summary
CVE-2026-49296 is an authorization bypass vulnerability in Apache Airflow prior to version 3.3.0. The vulnerability arises because the GET /api/v2/dagSources/{dag_id} endpoint and the corresponding UI view return the entire source file containing multiple DAGs without redacting DAGs the user is not authorized to read. This allows a user with read access to one DAG to disclose the source code of other co-located DAGs, violating per-DAG read authorization controls. The issue affects deployments that co-locate multiple DAGs in a single source file. Single-DAG-per-file deployments are not vulnerable. The vulnerability is tracked under CWE-639 (Authorization Bypass Through User-Controlled Key).
Potential Impact
An attacker with read access to one DAG can access the source code of other DAGs in the same source file, potentially exposing sensitive logic or credentials contained in those DAGs. This bypasses intended per-DAG access controls and could lead to unauthorized information disclosure. There is no indication of remote code execution or privilege escalation beyond source disclosure. The impact is limited to deployments that place multiple DAGs in a single file.
Mitigation Recommendations
Upgrade Apache Airflow to version 3.3.0 or later, where this vulnerability is fixed. There is no official patch or temporary fix detailed in the provided data, but the upgrade is the recommended remediation. Deployments using single-DAG-per-file layouts are not affected and do not require changes. Patch status is not explicitly confirmed beyond the recommendation to upgrade; check the vendor advisory for the latest remediation guidance.
CVE-2026-49296: CWE-639: Authorization Bypass Through User-Controlled Key in Apache Software Foundation Apache Airflow
Description
Apache Airflow versions before 3.3.0 have an authorization bypass vulnerability where a user authorized to read one DAG can access the source code of other DAGs located in the same source file. This occurs because the API endpoint and UI view return the entire source file without redacting unauthorized DAGs. Deployments that place multiple DAGs in a single file and rely on per-DAG access control are affected. Single-DAG-per-file deployments are not impacted. Upgrading to Apache Airflow 3.3.0 or later addresses this issue.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-49296 is an authorization bypass vulnerability in Apache Airflow prior to version 3.3.0. The vulnerability arises because the GET /api/v2/dagSources/{dag_id} endpoint and the corresponding UI view return the entire source file containing multiple DAGs without redacting DAGs the user is not authorized to read. This allows a user with read access to one DAG to disclose the source code of other co-located DAGs, violating per-DAG read authorization controls. The issue affects deployments that co-locate multiple DAGs in a single source file. Single-DAG-per-file deployments are not vulnerable. The vulnerability is tracked under CWE-639 (Authorization Bypass Through User-Controlled Key).
Potential Impact
An attacker with read access to one DAG can access the source code of other DAGs in the same source file, potentially exposing sensitive logic or credentials contained in those DAGs. This bypasses intended per-DAG access controls and could lead to unauthorized information disclosure. There is no indication of remote code execution or privilege escalation beyond source disclosure. The impact is limited to deployments that place multiple DAGs in a single file.
Mitigation Recommendations
Upgrade Apache Airflow to version 3.3.0 or later, where this vulnerability is fixed. There is no official patch or temporary fix detailed in the provided data, but the upgrade is the recommended remediation. Deployments using single-DAG-per-file layouts are not affected and do not require changes. Patch status is not explicitly confirmed beyond the recommendation to upgrade; check the vendor advisory for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-28T20:36:21.757Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4ccfd027e9c79719609a78
Added to database: 07/07/2026, 10:07:12 UTC
Last enriched: 07/07/2026, 10:21:53 UTC
Last updated: 07/07/2026, 10:21:53 UTC
Views: 3
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