BasPH opened a new issue, #41598: URL: https://github.com/apache/airflow/issues/41598
### Apache Airflow version Other Airflow 2 version (please specify below) ### If "Other Airflow 2 version" selected, which one? 2.9.1 and 2.10.0 ### What happened? XComs with a forward slash (/) in the key are not escaped when requesting the value from the API. Example on Airflow 2.10.0, in the XCom tab of a task pushing an XCom: <img width="883" alt="image" src="https://github.com/user-attachments/assets/e5c9d308-68f7-4af3-8e1e-dd31d63ebffe";> The / is not escaped in the call to https://airflow.apache.org/docs/apache-airflow/stable/stable-rest-api-ref.html#operation/get_xcom_entry and therefore the API thinks it's a request with 2 parts, which then returns a 404 because it's an unknown request structure. Note: the Admin -> XCom view does display the correct value, and tasks pulling the XCom are also able to function correctly, the issue in only in the UI. ### What you think should happen instead? XCom keys should be escaped for API requests. ### How to reproduce DAG to reproduce: ```python import datetime from airflow import DAG from airflow.models import TaskInstance from airflow.operators.python import PythonOperator with DAG(dag_id="xcom_example", schedule=None, start_date=datetime.datetime(2024, 1, 1)): def _push_xcom(ti: TaskInstance): ti.xcom_push(key="foo/bar", value="test") push_xcom = PythonOperator(task_id="push_xcom", python_callable=_push_xcom) def _pull_xcom(ti: TaskInstance): print(ti.xcom_pull(task_ids="push_xcom", key="foo/bar")) pull_xcom = PythonOperator(task_id="pull_xcom", python_callable=_pull_xcom) push_xcom >> pull_xcom ``` Trigger the DAG and browse to the XCom tab of the `push_xcom` task to see the error. Tested on Airflow 2.9.1 and 2.10.0. ### Operating System N/A ### Versions of Apache Airflow Providers _No response_ ### Deployment Docker-Compose ### Deployment details _No response_ ### Anything else? _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
