CVE-2025-64497 is a medium-severity authorization bypass vulnerability identified in Enalean's Tuleap software, an open-source suite widely used for software development management and collaboration. The vulnerability is classified under CWE-639, which pertains to authorization bypass through user-controlled keys. Specifically, versions of Tuleap Community Edition below 17.0.99.1762431347 and Enterprise Edition versions below 17.0-2, 16.13-7, and 16.12-10 contain a flaw that allows attackers with limited privileges (PR:L) to bypass authorization controls and access file release system information belonging to projects they are not authorized to access. The attack vector is network-based (AV:N), requiring no user interaction (UI:N), and the scope remains unchanged (S:U). The vulnerability impacts confidentiality (C:H) but does not affect integrity or availability. This means sensitive project files and metadata could be disclosed to unauthorized users, potentially leaking proprietary or sensitive development information. Although no known exploits have been reported in the wild, the presence of this vulnerability in collaboration tools used by development teams poses a risk of data leakage and intellectual property exposure. The issue is resolved in Tuleap Community Edition version 17.0.99.1762431347 and Enterprise Edition versions 17.0-2, 16.13-7, and 16.12-10. Organizations using affected versions should prioritize patching to prevent unauthorized data access.

For European organizations, the primary impact of CVE-2025-64497 is the unauthorized disclosure of sensitive project and release information managed within Tuleap. This can lead to intellectual property theft, exposure of confidential development plans, and potential competitive disadvantages. Organizations in sectors such as software development, technology, finance, and government that rely on Tuleap for project management and collaboration are particularly vulnerable. The breach of confidentiality could also lead to compliance issues under regulations like GDPR if personal data or sensitive business information is exposed. While the vulnerability does not affect system integrity or availability, the leakage of sensitive information can undermine trust and damage reputations. Since exploitation requires only low privileges and network access, insider threats or compromised user accounts could be leveraged to exploit this flaw. The lack of known exploits in the wild reduces immediate risk but does not eliminate the potential for targeted attacks, especially in high-value environments.

1. Immediate upgrade to the fixed Tuleap versions: Community Edition 17.0.99.1762431347 or Enterprise Edition 17.0-2, 16.13-7, or 16.12-10. 2. Conduct an audit of current user privileges and project access controls to ensure the principle of least privilege is enforced, minimizing the risk of low-privilege accounts being exploited. 3. Implement network segmentation and access restrictions to limit Tuleap server exposure to trusted internal networks and VPNs only. 4. Monitor Tuleap logs and access patterns for unusual activity, such as unauthorized attempts to access project files or release information. 5. Educate users and administrators about the risks of privilege misuse and encourage strong authentication practices, including multi-factor authentication where possible. 6. Review and update incident response plans to include scenarios involving unauthorized data disclosure from collaboration platforms. 7. If upgrading immediately is not feasible, consider temporary compensating controls such as disabling file release system features or restricting access to sensitive projects until patches can be applied.