CVE-2025-11285 is a medium-severity OS command injection vulnerability found in samanhappy MCPHub versions 0.9.0 through 0.9.10. The vulnerability resides in an unspecified functionality within the source file src/controllers/serverController.ts, where manipulation of the command or arguments parameters allows an attacker to inject arbitrary operating system commands. This vulnerability can be exploited remotely without requiring user interaction or authentication, as indicated by the CVSS vector (AV:N/AC:L/AT:N/UI:N/PR:L). The exploitability is partially limited by the requirement of low privileges (PR:L), meaning the attacker must have some level of access to the system but no elevated privileges are necessary. The vendor was notified early but has not responded or provided a patch, and no official fixes are currently available. Although no known exploits are reported in the wild yet, the exploit code has been publicly disclosed, increasing the risk of exploitation. The vulnerability impacts confidentiality, integrity, and availability since arbitrary OS commands can be executed, potentially leading to data leakage, system compromise, or denial of service. The CVSS 4.0 score of 5.3 reflects a medium severity, balancing the ease of remote exploitation with the requirement for some privileges and limited scope of impact. The lack of a patch and vendor response increases the urgency for affected organizations to implement mitigations.

For European organizations using samanhappy MCPHub in affected versions, this vulnerability poses a significant risk. Successful exploitation could allow attackers to execute arbitrary commands on the server hosting MCPHub, potentially leading to unauthorized data access, system manipulation, or disruption of services. This is particularly critical for organizations relying on MCPHub for critical infrastructure or sensitive data management. The remote exploitability without user interaction increases the attack surface, especially if MCPHub instances are exposed to the internet or accessible within internal networks. The medium severity suggests that while the vulnerability is serious, exploitation requires some level of access, which may limit widespread impact. However, the absence of vendor patches and public exploit availability means attackers could leverage this vulnerability in targeted attacks against European companies, especially those in sectors with high reliance on MCPHub or similar platforms. The impact on confidentiality, integrity, and availability could lead to regulatory compliance issues under GDPR if personal data is compromised, as well as operational disruptions.

Given the lack of official patches, European organizations should immediately audit their environments to identify MCPHub deployments and verify versions. If possible, restrict network access to MCPHub instances using firewalls or network segmentation to limit exposure to trusted users only. Implement strict access controls and monitor for unusual command execution or system behavior indicative of exploitation attempts. Employ application-layer filtering or Web Application Firewalls (WAFs) to detect and block suspicious command injection patterns targeting the vulnerable parameters. Consider deploying host-based intrusion detection systems (HIDS) to alert on anomalous OS command executions. If feasible, temporarily disable or isolate the vulnerable functionality in src/controllers/serverController.ts until a vendor patch is available. Organizations should also prepare incident response plans specific to this vulnerability and monitor threat intelligence feeds for emerging exploit activity. Finally, maintain regular backups and ensure recovery procedures are tested to mitigate potential damage from exploitation.