The grant.xsfunc application in testApps/grantAccess/ in the XS Engine in SAP HANA DB 1.00.73.00.389160 (NewDB100_REL) allows remote authenticated users to spoof log entries via a crafted request, aka SAP Security Note 2109818.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.