CVE-2025-53670 is a security vulnerability affecting the Jenkins Nouvola DiveCloud Plugin version 1.08 and earlier. The core issue is that the plugin stores sensitive DiveCloud API keys and credentials encryption keys in an unencrypted form within the job configuration files (config.xml) on the Jenkins controller. These configuration files are typically stored on the Jenkins master node's filesystem. Because these keys are stored in plaintext, any user with Item or Extended Read permissions within Jenkins, or any attacker with access to the Jenkins controller's file system, can view and extract these sensitive credentials. This exposure can lead to unauthorized access to DiveCloud services and potentially other integrated systems that rely on these credentials. The vulnerability arises from improper handling and storage of sensitive data, violating best practices for credential management, such as encryption at rest and least privilege access. Since Jenkins is widely used for continuous integration and continuous deployment (CI/CD) pipelines, the compromise of these credentials could allow attackers to manipulate build processes, inject malicious code, or access downstream systems. Notably, this vulnerability does not require elevated Jenkins permissions beyond Item/Extended Read, which are relatively common in many Jenkins environments, increasing the risk surface. Additionally, no patch or fix has been linked yet, and there are no known exploits in the wild at the time of publication, but the risk remains significant due to the nature of the exposed credentials.

For European organizations, this vulnerability poses a significant risk to the confidentiality and integrity of their CI/CD pipelines and associated cloud resources. Exposure of DiveCloud API keys could allow attackers to manipulate cloud deployments, exfiltrate sensitive data, or disrupt automated workflows. Given the critical role Jenkins plays in software development and deployment, exploitation could lead to unauthorized code execution, insertion of backdoors, or disruption of production environments. This could impact organizations across sectors such as finance, healthcare, manufacturing, and government, where secure and reliable software delivery is essential. Additionally, the breach of credentials could lead to compliance violations under regulations like GDPR, especially if personal data or critical infrastructure is involved. The fact that relatively low-level Jenkins permissions are sufficient to access these keys increases the likelihood of insider threats or lateral movement by attackers who have gained limited access. The absence of encryption for stored credentials also means that any compromise of the Jenkins controller's file system, even without Jenkins authentication, could lead to credential theft. Overall, the vulnerability undermines trust in the security of the CI/CD environment and could facilitate broader attacks on enterprise infrastructure.

European organizations should immediately audit their Jenkins environments to identify usage of the Nouvola DiveCloud Plugin version 1.08 or earlier. Until a patch is available, the following specific mitigations are recommended: 1) Restrict Jenkins Item/Extended Read permissions strictly to trusted users only, minimizing the number of users who can view job configurations. 2) Limit and monitor access to the Jenkins controller file system, ensuring that only authorized administrators have access. 3) Consider disabling or uninstalling the Nouvola DiveCloud Plugin if it is not essential to operations. 4) Rotate all DiveCloud API keys and credentials used by the plugin to invalidate any potentially exposed secrets. 5) Implement network segmentation and access controls to isolate Jenkins controllers from broader network access. 6) Monitor Jenkins logs and system access for unusual activity indicative of credential access or misuse. 7) Employ secrets management solutions external to Jenkins to handle API keys securely, avoiding storage in job config files. 8) Stay updated with Jenkins security advisories and apply patches promptly once available. These steps go beyond generic advice by focusing on permission hardening, credential rotation, and operational controls specific to this vulnerability.