The vulnerability stems from improper synchronization in mixed query handling. The advisory explicitly references a 'ds proxy race condition' and public dashboard query execution as attack vectors. The first function is core to data source proxying and would require synchronization when managing concurrent requests. The second function handles public dashboard queries where mixed data source interactions occur. Both align with CWE-820's missing synchronization pattern and the described crash scenario. Confidence is high for the proxy function due to direct correlation with the advisory's technical details, and medium for the public dashboard function due to its role in mixed query execution.