Apache Airflow up to 3.2.x DAG Source api/v2/dagSources access control

Summaryinfo

A vulnerability identified as problematic has been detected in Apache Airflow up to 3.2.x. Impacted is an unknown function of the file api/v2/dagSources of the component DAG Source Handler. Performing a manipulation results in access control. This vulnerability was named CVE-2026-49296. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in Apache Airflow up to 3.2.x. This affects some unknown functionality of the file api/v2/dagSources of the component DAG Source Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality. The summary by CVE is:

Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. `GET /api/v2/dagSources/{dag_id}` — and the equivalent Dag-source view in the UI — returned the entire source file without redacting Dags the caller was not authorized to read, bypassing per-DAG read authorization. Deployments that co-locate multiple Dags in a single file and rely on per-DAG access control to limit source visibility are affected; single-Dag-per-file deployments are not. Upgrade to apache-airflow 3.3.0 or later.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-49296 since 05/28/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/07/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 3.3.0 eliminates this vulnerability.

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Productinfo

Type

• Business Process Management Software

Vendor

• Apache

Name

• Airflow

Version

• 3.0
• 3.1
• 3.2

License

• open-source

Website

• Vendor: https://www.apache.org/
• Product: https://github.com/apache/airflow/

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