Apache Airflow up to 3.2.x Scheduling Graph /ui/dependencies information disclosure

Summaryinfo

A vulnerability marked as problematic has been reported in Apache Airflow up to 3.2.x. Affected by this issue is some unknown functionality of the file /ui/dependencies of the component Scheduling Graph. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2026-48891. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Apache Airflow up to 3.2.x. This issue affects an unknown code of the file /ui/dependencies of the component Scheduling Graph. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

A bug in Apache Airflow's `/ui/dependencies` scheduling graph endpoint applied the caller's readable-Dag filter to the top-level serialized Dag key but still emitted referenced Dag IDs through the `dep.source` and `dep.target` fields of trigger / sensor dependency entries. An authenticated UI user with read permission on some Dags could enumerate the identifiers of other Dags they were not authorized to read by inspecting the dependency graph for trigger / sensor references. Affects deployments that rely on per-Dag read scoping to keep Dag identifiers private across teams. This is a residual gap in the fix for CVE-2026-28563, which filtered the top-level Dag key but did not propagate the filter into the trigger / sensor dep-source / dep-target fields. Users who already upgraded for CVE-2026-28563 should additionally upgrade to `apache-airflow` 3.3.0 or later to cover the residual trigger / sensor dependency leak.

The weakness was released by Mitchell Benjamin. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-48891 since 05/26/2026. The exploitation is known to be easy. The attack may be initiated 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 07/08/2026). The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 3.3.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2223). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Apache Airflow

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/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion