DataEase is an open source data visualization analysis tool. In versions 2.10.14 and below, the vendor added a blacklist to filter ldap:// and ldaps://. However, omission of protection for the dns:// protocol results in an SSRF vulnerability. This issue is fixed in version 2.10.15.
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.