The vulnerability identified as CVE-2025-14651 affects MartialBE one-hub versions up to 0.14.27 and stems from the use of a hard-coded cryptographic key within the docker-compose.yml configuration file, specifically through the SESSION_SECRET environment variable. This secret is used to secure session management or cryptographic operations, and hard-coding it means the same secret is reused across deployments, making it predictable and vulnerable to compromise. An attacker who can remotely access the service could exploit this weakness to hijack user sessions, decrypt sensitive data, or bypass authentication mechanisms relying on the SESSION_SECRET. The attack complexity is rated high, indicating that exploitation requires significant effort or specific conditions, and no privileges or user interaction are needed. The vulnerability does not affect integrity or availability directly but compromises confidentiality. The vendor explicitly states that the default docker-compose example is not intended for production use and urges administrators to customize all configurations and environment variables, including SESSION_SECRET, to unique, secure values. No patches or fixes are currently linked, and no known exploits are reported in the wild, but public disclosure means attackers could develop exploits. The CVSS 4.0 score is 6.3 (medium), reflecting network attack vector, high complexity, no privileges, no user interaction, and limited confidentiality impact. This vulnerability highlights the risks of deploying default configurations in containerized environments without proper security hardening.

For European organizations, the primary impact of CVE-2025-14651 lies in the potential compromise of session confidentiality and cryptographic protections within MartialBE one-hub deployments. Organizations using this product with default or unchanged SESSION_SECRET values risk session hijacking, unauthorized access, or data exposure. This is particularly critical for sectors handling sensitive personal data, such as finance, healthcare, or government services, where session integrity is vital. The medium severity and high attack complexity reduce the likelihood of widespread exploitation but do not eliminate risk, especially from targeted attackers with resources to analyze and exploit the vulnerability. The use of container orchestration and microservices in European enterprises means that this vulnerability could serve as an entry point for lateral movement if not mitigated. Additionally, compliance with GDPR and other data protection regulations could be jeopardized if session secrets are compromised, leading to potential legal and reputational consequences. Organizations relying on MartialBE one-hub for collaboration or data management should prioritize remediation to maintain confidentiality and trust.

To mitigate CVE-2025-14651, European organizations should immediately audit all MartialBE one-hub deployments to identify usage of the default docker-compose.yml configuration and the SESSION_SECRET environment variable. Replace any hard-coded or default SESSION_SECRET values with strong, randomly generated secrets unique to each deployment. Implement automated configuration management and secrets management tools to enforce secure environment variable handling. Avoid deploying default example configurations in production environments. Additionally, restrict network access to the one-hub service using firewalls or zero-trust network principles to reduce exposure. Monitor logs for unusual session activity that could indicate exploitation attempts. Stay updated with MartialBE vendor advisories for patches or updated configuration guidelines. Consider container security best practices such as image scanning and runtime protection to detect anomalous behavior. Finally, integrate these controls into the organization's broader security policy and incident response plans to ensure rapid detection and remediation of potential exploitation.