Risesoft Digital-Infrastructure 9.6.5 through 9.6.11 contains a path traversal vulnerability in the fileManager Y9FileController.retrieveFileStream handler that allows unauthenticated attackers to read arbitrary files by supplying parent-directory segments in the fullPath and fileName parameters. Attackers can request the unauthenticated /rest/retrieveFileStream endpoint to retrieve files like application.yml, exposing database, Redis and Nacos credentials.