CVE-2025-59040 is a medium-severity vulnerability identified in Enalean's Tuleap, an open-source software suite designed to facilitate software development management and team collaboration. The vulnerability stems from improper handling of insufficient permissions or privileges (CWE-280) in the way Tuleap represents backlog items. Specifically, when displaying child trackers within backlog items, the system fails to verify the permissions of these child trackers adequately. As a result, users with limited privileges may be able to view the names of trackers they are not authorized to access. This issue affects Tuleap versions prior to 16.11.99.1757427600. The vulnerability does not allow modification or deletion of data, nor does it impact system availability. It is a confidentiality issue where unauthorized disclosure of tracker names can occur. The CVSS v3.1 base score is 4.3, reflecting a medium severity level, with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), no user interaction (UI:N), unchanged scope (S:U), limited confidentiality impact (C:L), and no impact on integrity or availability (I:N/A:N). No known exploits are reported in the wild, and the issue has been fixed in Tuleap Community Edition 16.11.99.1757427600 and Enterprise Editions 16.11-6 and 16.10-8. The vulnerability primarily exposes sensitive project management metadata, which could potentially be leveraged for further reconnaissance or social engineering attacks within affected organizations.

For European organizations using Tuleap, this vulnerability could lead to unauthorized disclosure of sensitive project management information, such as tracker names that may reveal details about ongoing projects, internal workflows, or development priorities. While the direct impact on confidentiality is limited to metadata exposure, this information leakage can aid attackers in mapping organizational structures or identifying valuable targets for subsequent attacks. Organizations in sectors with strict data privacy regulations, such as finance, healthcare, or government, may face compliance risks if sensitive project information is inadvertently exposed. Additionally, competitors or malicious insiders could exploit this vulnerability to gain insights into proprietary development processes. However, since the vulnerability does not allow modification or disruption of data or services, the operational impact is limited. The requirement for some level of privileges to exploit the vulnerability reduces the risk from external attackers but does not eliminate insider threat scenarios or risks from compromised accounts.

European organizations should promptly upgrade affected Tuleap instances to the fixed versions: Community Edition 16.11.99.1757427600 or Enterprise Editions 16.11-6 and 16.10-8. Until patching is completed, organizations should review and tighten access controls and permissions within Tuleap to minimize the number of users with privileges that allow viewing backlog items and child trackers. Implement strict role-based access control (RBAC) policies and regularly audit user permissions to ensure least privilege principles are enforced. Monitoring and logging access to sensitive project management data should be enhanced to detect any unauthorized access attempts. Additionally, organizations should educate users about the sensitivity of tracker information and the importance of reporting suspicious activity. For environments where patching is delayed, consider isolating Tuleap instances within secure network segments and restricting access to trusted users only. Finally, coordinate with Enalean support for any additional security advisories or recommended configurations.