Tuleap is a Free & Open Source Suite to improve management of software developments and collaboration. In versions prior to 13.9.99.58 authorizations are not properly verified when creating projects or trackers from projects marked as templates. Users can get access to information in those template projects because the permissions model is not properly enforced. Users are advised to upgrade. There are no known workarounds for this issue.
https://tuleap.net/plugins/tracker/?aid=26816
https://github.com/Enalean/tuleap/security/advisories/GHSA-hvx6-4228-whj3
https://github.com/Enalean/tuleap/commit/cc38bcc59ce0c733ca915d95daec5f3082fb17ca
https://github.com/Enalean/tuleap/commit/7e221a9d1893c13407b35008762757a76d8e5654
https://docs.tuleap.org/administration-guide/users-management/security/site-access.html