BIT-AIRFLOW-2026-67260 Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaitinginput task state swept by the scheduler. That sweep deserializes the task instance's nextkwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an...

Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the deserialize. An attacker can execute arbitrary code by supplying a crafted serialized blob that causes the import and invocation of malicious callables. This can be exploited by a DAG author...

EUVD-2026-57275

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaitinginput task state swept by the scheduler. That sweep deserializes the task instance's nextkwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an...

CVE-2026-67260

Concretely, CVE-2026-67260 affects Apache Airflow 3.3.0 where the scheduler’s awaiting_input sweep deserializes a task’s next_kwargs without an allow-list. This allows a Dag author (via the task execution API) to trigger arbitrary module imports and object instantiation inside the scheduler proce...

CVE-2026-67260 Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaitinginput task state swept by the scheduler. That sweep deserializes the task instance's nextkwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an...

CVE-2026-67260 Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaitinginput task state swept by the scheduler. That sweep deserializes the task instance's nextkwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an...

CVE-2026-67260 Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaitinginput task state swept by the scheduler. That sweep deserializes the task instance's nextkwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an...

CVE-2026-67587

Apache Airflow 3.3.1 or later fixes a deserialization gadget in the Task SDK where a Dag author can cause the scheduler to import an arbitrary module during the awaiting_input sweep by reconstructing a Callback from serialized data. The issue affects SyncCallback’s deserialization path and does n...

CVE-2026-67587

Apache Airflow's Task SDK rebuilt a Callback object from serialized data by re-running its constructor, which imports the module named by the stored callback path. Because SyncCallback is itself an Airflow class it passes the default alloweddeserializationclasses allow-list, so tightening that...

CVE-2026-68968 Apache Airflow: Authorization bypass in the Backfill API through conflicting interpretations of the backfill id

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfillid path segment failed to parse. The authorization dependency parsed it with int while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int rejects 1.0...

CVE-2026-68971

Apache Airflow's asset materialization endpoint POST /api/v2/assets/assetid/materialize and the XCom result check on waitdagrununtilfinished authorized the target Dag without its team, unlike every other authorization site. A team-aware auth manager distinguishes a team-scoped Dag from a global o...

EUVD-2026-57268

Apache Airflow's asset materialization endpoint POST /api/v2/assets/assetid/materialize and the XCom result check on waitdagrununtilfinished authorized the target Dag without its team, unlike every other authorization site. A team-aware auth manager distinguishes a team-scoped Dag from a global o...

CVE-2026-68971 Apache Airflow: Cross-team authorization bypass in the asset materialization and dag-run result endpoints

Apache Airflow's asset materialization endpoint POST /api/v2/assets/assetid/materialize and the XCom result check on waitdagrununtilfinished authorized the target Dag without its team, unlike every other authorization site. A team-aware auth manager distinguishes a team-scoped Dag from a global o...

CVE-2026-68971

CVE-2026-68971 (Apache Airflow) describes a cross-team authorization bypass in the asset materialization endpoint (POST /api/v2/assets/{asset_id}/materialize) and the XCom result check on wait_dag_run_until_finished. A team-aware auth manager failed to consult the team-scoped permission, treating...

PT-2026-71125

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new awaiting input task state swept by the scheduler. That sweep deserializes the task instance's next kwargs without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an...

PT-2026-71133

Name of the Vulnerable Software and Affected Versions Apache Airflow versions prior to 3.3.1 Description In deployments using multi-team mode with a team-aware auth manager, the asset materialization endpoint POST /api/v2/assets/asset id/materialize and the XCom result check on wait dag run until...

CVE-2026-59245

In the Apache Airflow FAB auth manager, a DAG whose dagid is DAGs collided with the global all-DAGs permission resource name produced by resourcename, so a user granted per-DAG accesscontrol on that one DAG was silently granted the global all-DAGs permission privilege escalation. The escalation...

PYSEC-2026-2354 Apache Airflow has an Authorization Bypass Through User-Controlled Key

The Event Log detail endpoint GET /api/v2/eventLogs/eventlogid in Apache Airflow fetched audit-log rows directly by numeric ID after only the generic Audit Log permission check, while the collection endpoint GET /api/v2/eventLogs applied per-Dag scoping. An authenticated UI/API user with audit-lo...

PYSEC-2026-2349 Apache Airflow has an Improper Authorization issue

The structuredata endpoint in the Airflow UI returned external dependency graph nodes for linked Dags without checking whether the caller had read permission on those linked Dags. An authenticated UI/API user authorized for one Dag could enumerate linked Dag IDs and dependency metadata for other...

CVE-2026-59245 Apache Airflow FAB provider: FAB auth manager: a DAG named "DAGs" hijacks the global all-DAGs permission (access_control privilege escalation via resource_name() collision)

In the Apache Airflow FAB auth manager, a DAG whose dagid is DAGs collided with the global all-DAGs permission resource name produced by resourcename, so a user granted per-DAG accesscontrol on that one DAG was silently granted the global all-DAGs permission privilege escalation. The escalation...