CVE-2025-68162 is a vulnerability identified in JetBrains TeamCity, a popular continuous integration and delivery (CI/CD) server, affecting versions prior to 2025.11. The issue stems from the Maven embedder component, which improperly allows loading of extensions through project configuration files. This behavior corresponds to CWE-829, which involves inclusion of functionality from untrusted control of a resource or configuration. An attacker with high privileges—meaning they have authenticated access with elevated rights—can exploit this flaw to load arbitrary extensions. These extensions could modify the build process or introduce malicious code, thereby compromising the integrity of the CI/CD pipeline. The CVSS v3.1 base score is 2.7, reflecting a low severity primarily because exploitation requires high privilege and no confidentiality or availability impact is observed. No user interaction is needed, and the scope remains unchanged, indicating the vulnerability affects only the vulnerable component without extending to other system components. No public exploits have been reported, and no patches are currently linked, suggesting this is a recently disclosed vulnerability. The technical details confirm the vulnerability was reserved and published on December 16, 2025. Given TeamCity’s role in automating software builds and deployments, integrity compromises here could lead to unauthorized code changes or supply chain risks if exploited.

For European organizations, the primary impact of CVE-2025-68162 lies in the potential compromise of software build integrity. Organizations relying on TeamCity for their CI/CD pipelines could face risks of unauthorized code injection or modification if an attacker with high privileges exploits this vulnerability. While confidentiality and availability are not directly affected, the integrity breach could lead to downstream security issues, including deployment of malicious or altered software to production environments. This is particularly critical for sectors with stringent software assurance requirements such as finance, healthcare, and critical infrastructure. The requirement for high privilege access limits the attack surface but emphasizes the importance of strict access control and monitoring. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits post-disclosure. European organizations with mature DevOps practices and automated pipelines using TeamCity should prioritize assessment and remediation to prevent potential supply chain compromises.

1. Upgrade to JetBrains TeamCity version 2025.11 or later as soon as the patch becomes available to eliminate the vulnerability. 2. Restrict high privilege accounts to only trusted personnel and enforce the principle of least privilege to minimize the number of users who can exploit this flaw. 3. Implement rigorous access controls and multi-factor authentication (MFA) for all users with elevated privileges in TeamCity. 4. Audit existing project configurations to identify and remove any unauthorized or suspicious Maven extensions or plugins. 5. Monitor build logs and extension loading activities for anomalies that could indicate exploitation attempts. 6. Employ network segmentation to isolate CI/CD infrastructure from less trusted networks and systems. 7. Educate development and DevOps teams about the risks of loading untrusted extensions and enforce policies to validate third-party components. 8. Maintain an incident response plan that includes scenarios involving CI/CD pipeline compromise to enable rapid containment and remediation.