The host is installed with JetBrains YouTrack 2020.3.x before 2020.3.4313, 2020.2.x before 2020.2.11008, 2020.1.x before 2020.1.11011, 2019.1.x before 2019.1.65514, 2019.2.x before 2019.2.65515 or 2019.3.x before 2019.3.65516 and is prone to an information dicslosure vulnerability. A flaw is present in the application, which fails to properly handle an issue in REST API endpoint. Successful exploitation could allow attackers to retrieve issue description data without having the appropriate access to these issues.