The vulnerability identified as CVE-2025-64141 resides in the Jenkins Nexus Task Runner Plugin, specifically versions 0.9.2 and earlier. It is a cross-site request forgery (CSRF) vulnerability classified under CWE-352. CSRF vulnerabilities allow attackers to trick authenticated users into submitting unwanted requests to a web application in which they are currently authenticated. In this case, an attacker can exploit the vulnerability to cause the plugin to connect to a URL controlled by the attacker, using credentials specified by the attacker. The CVSS 3.1 base score is 4.3 (medium), with the vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, indicating that the attack can be performed remotely over the network with low attack complexity, requires privileges (likely a logged-in user with some permissions), no user interaction, and impacts integrity but not confidentiality or availability. The vulnerability does not require user interaction, making it easier to exploit once the attacker has the necessary privileges. The plugin is used within Jenkins, a widely adopted continuous integration and continuous delivery (CI/CD) automation server, which is critical in software development pipelines. The flaw could allow attackers to manipulate build processes or inject malicious steps by redirecting plugin operations to attacker-controlled endpoints, potentially undermining the integrity of the build environment. No patches or fixes are currently linked, and no known exploits have been reported in the wild as of the publication date (October 29, 2025).

For European organizations, this vulnerability poses a risk to the integrity of their software development and deployment pipelines. Jenkins is extensively used across Europe in various industries including finance, manufacturing, and technology sectors. An attacker exploiting this vulnerability could redirect plugin operations to malicious endpoints, potentially injecting unauthorized commands or manipulating build artifacts. This could lead to compromised software releases, introduction of backdoors, or disruption of automated workflows. While confidentiality and availability are not directly impacted, the integrity breach could have downstream effects such as reputational damage, regulatory non-compliance (e.g., under GDPR if software integrity impacts personal data processing), and financial losses due to compromised software products. Organizations relying on Jenkins Nexus Task Runner Plugin should assess their exposure, especially if the plugin is used in critical or production environments.

1. Immediate mitigation involves upgrading the Jenkins Nexus Task Runner Plugin to a version that addresses this vulnerability once available. Since no patch links are currently provided, organizations should monitor official Jenkins advisories for updates. 2. Implement strict access controls to limit the number of users with privileges sufficient to exploit this vulnerability (PR:L). 3. Employ web application firewalls (WAFs) or reverse proxies to detect and block suspicious CSRF attempts targeting Jenkins interfaces. 4. Enable and enforce CSRF protection mechanisms within Jenkins and its plugins where configurable. 5. Conduct regular audits of Jenkins plugin usage and configurations to identify and isolate vulnerable components. 6. Use network segmentation to restrict Jenkins server communication to trusted endpoints only, minimizing the risk of redirection to attacker-controlled URLs. 7. Educate developers and DevOps teams about the risks of CSRF and the importance of verifying plugin updates and security advisories.