Severity: medium
Affected versions:
- Apache Airflow (apache-airflow) 3.2.0 before 3.2.2
Description:
A bug in Apache Airflow's bulk Task Instances API (`PATCH/DELETE
/api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances`) evaluated
authorization against the `dag_id` resolved from the URL path while operating
on the `dag_id` / `dag_run_id` extracted from request-body entity fields. An
authenticated UI/API user with edit permission on one Dag could mutate Task
Instance state in any other Dag by keeping the authorized Dag's ID in the URL
path and naming the target Dag's IDs in the request body entities. Affects
deployments that rely on per-Dag edit-scope to keep Task Instance state
isolated between teams. Users are advised to upgrade to `apache-airflow` 3.2.2
or later.
Credit:
Pirikara (finder)
GPK (gopidesupavan) (remediation developer)
References:
https://github.com/apache/airflow/pull/64288
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-41084
