CVE-2026-24007 is a Cross-Site Request Forgery (CSRF) vulnerability identified in Enalean's Tuleap software, an open-source suite for software development management and collaboration. The vulnerability arises due to missing CSRF protection in the 'Overview inconsistent items' functionality. This flaw allows an attacker to craft malicious web requests that, when executed by an authenticated user, cause the system to perform unintended actions such as repairing inconsistent items by creating artifact links from a release. The attack vector is network-based (AV:N), requires low attack complexity (AC:L), and needs privileges (PR:L) and user interaction (UI:R) to succeed. The vulnerability affects versions prior to 17.0.99.1768924735, with fixes released in the Community and Enterprise editions. While the confidentiality of data is not impacted, the integrity and availability of the system can be compromised by unauthorized modifications to artifacts or system state. No public exploits have been reported to date, but the presence of this vulnerability in collaboration tools used by development teams can facilitate supply chain or project disruptions if exploited. The CVSS score of 4.6 reflects a medium severity level, emphasizing the need for timely remediation.

For European organizations, this vulnerability poses a risk primarily to the integrity and availability of software development management processes. Tuleap is used for project tracking, artifact management, and collaboration, so unauthorized modifications could disrupt development workflows, introduce inconsistencies in release artifacts, or cause denial of service conditions. Organizations relying on Tuleap for critical software projects, especially in regulated industries such as finance, healthcare, or government, may face operational delays and potential compliance issues if the vulnerability is exploited. Although no confidentiality breach is expected, the integrity compromise could lead to corrupted project data or unauthorized changes that impact software quality and delivery. The requirement for user interaction and authentication limits the attack scope but does not eliminate risk, especially in environments with many users or where phishing attacks could be used to induce victim interaction.

European organizations should immediately upgrade affected Tuleap instances to the patched versions: Community Edition 17.0.99.1768924735 or Enterprise Editions 17.2-5, 17.1-6, and 17.0-9. Beyond patching, organizations should implement strict CSRF protections such as anti-CSRF tokens on all state-changing requests, enforce same-site cookie attributes, and validate the origin and referer headers where applicable. User awareness training to recognize phishing attempts that could trigger CSRF attacks is recommended. Network segmentation and access controls should limit exposure of Tuleap instances to trusted users only. Regular security audits and monitoring of logs for unusual artifact link creation or repair activities can help detect exploitation attempts early. Additionally, integrating multi-factor authentication (MFA) can reduce the risk of compromised credentials being used in conjunction with CSRF attacks.