Description (CNA)
Apache Airflow's XCom `GET /api/v2/{...}/xcomEntries/{key}?deserialize=true` endpoint passed a string-literal payload through `BaseXCom.deserialize_value` without the `_check_forbidden_xcom_keys` guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary `airflow.*` classes on the API server (CWE-502). An authenticated user who can write an XCom value and then read it back with `deserialize=true` triggers the unsafe instantiation. Users are advised to upgrade to apache-airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Apache Software Foundation / Apache Airflow | affected 0 before 3.3.1 |
CWE
CWE-502
References
- https://github.com/apache/airflow/pull/69378
- https://lists.apache.org/thread/dm0520yhh4mn7qknyoh45r2w6c5qg2mg
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.