Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Airflow | >= 3.2.0, < 3.2.2 |
Related Weaknesses (CWE)
References
- https://github.com/apache/airflow/pull/64288Issue TrackingPatch
- https://lists.apache.org/thread/w0hdcqfr71hf9rl1bwvpjs7q9yp1bldkMailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/31/7Mailing ListThird Party Advisory
FAQ
What is CVE-2026-41084?
CVE-2026-41084 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 whil...
How severe is CVE-2026-41084?
CVE-2026-41084 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41084?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Airflow.