CVE-2025-64482 is a Cross-Site Request Forgery (CSRF) vulnerability identified in Enalean's Tuleap software, an open-source suite designed to facilitate software development management and collaboration. The vulnerability affects the file release system component in versions prior to Tuleap Community Edition 16.13.99.1762267347 and Enterprise Editions 17.0-1, 16.13-6, and 16.12-9. CSRF vulnerabilities occur when an attacker tricks an authenticated user into submitting unwanted actions to a web application without their consent. In this case, the lack of CSRF protections allows an attacker to craft malicious requests that, if executed by a logged-in user, can alter commit rules or immutable tags in a Subversion (SVN) repository managed by Tuleap. These commit rules and tags are critical for maintaining code integrity and controlling repository behavior. The vulnerability requires the attacker to have some level of authenticated access (PR:L) and user interaction (UI:R), such as convincing the victim to click a malicious link or visit a crafted webpage. The CVSS v3.1 base score is 4.6, reflecting a medium severity level, with network attack vector (AV:N), low attack complexity (AC:L), and impacts primarily on integrity and availability (I:L, A:L), but no confidentiality impact (C:N). There are no known exploits in the wild at this time, but the vulnerability poses a risk of unauthorized changes to repository configurations, potentially disrupting development processes or enabling further malicious activity. The issue has been addressed in the specified patched versions, which implement proper CSRF protections to prevent unauthorized state-changing requests.

For European organizations using Tuleap to manage software development, this vulnerability could lead to unauthorized modifications of SVN repository commit rules or immutable tags. Such changes can undermine the integrity of the software development lifecycle by allowing malicious or unintended commits, potentially introducing vulnerabilities or disrupting release processes. The availability of repository functions could also be affected if immutable tags are altered improperly. This risk is particularly significant for organizations relying on Tuleap for critical or regulated software projects, including those in finance, healthcare, and government sectors across Europe. The medium severity rating indicates that while the vulnerability is not trivially exploitable without some user interaction and privileges, successful exploitation could cause moderate operational disruption and integrity loss. Given the collaborative nature of Tuleap, the impact could extend to multiple teams and projects within an organization, increasing the scope of potential damage. Additionally, the lack of confidentiality impact reduces the risk of data leakage but does not diminish the importance of maintaining repository integrity in compliance with European data governance and software assurance standards.

European organizations should immediately verify their Tuleap versions and upgrade to the patched releases: Community Edition 16.13.99.1762267347 or Enterprise Editions 17.0-1, 16.13-6, or 16.12-9. Where immediate patching is not feasible, organizations should implement compensating controls such as enforcing strict user authentication and session management policies to limit the risk of CSRF exploitation. Deploying web application firewalls (WAFs) with rules to detect and block suspicious CSRF-like requests targeting the file release system endpoints can provide interim protection. Educating users about the risks of clicking untrusted links and employing browser security features that mitigate CSRF (e.g., SameSite cookies) can reduce the likelihood of successful attacks. Additionally, auditing repository commit rules and immutable tags regularly for unauthorized changes can help detect exploitation attempts early. Organizations should also review and minimize the number of users with privileges to modify repository configurations to reduce the attack surface. Finally, integrating CSRF protection testing into regular security assessments of Tuleap deployments will help ensure ongoing resilience against similar vulnerabilities.