CVE-2026-3064 is a command injection vulnerability identified in the HummerRisk software suite, specifically affecting versions 1.0 through 1.5.0. The flaw exists in the Cloud Task Scheduler component within the ResourceCreateService.java file, where the regionId parameter is improperly sanitized or validated. This allows an attacker to manipulate the regionId argument to inject arbitrary system commands that the scheduler executes. The vulnerability can be exploited remotely without requiring user interaction, but the attacker must have low-level privileges on the system. The injection vector suggests that the Cloud Task Scheduler processes regionId inputs in a way that directly influences command execution, likely through concatenation or improper escaping in system calls. The vendor was notified early but has not issued any patches or advisories, leaving systems exposed. The CVSS 4.0 base score of 5.3 indicates a medium severity, reflecting that while the attack vector is network accessible and requires no user interaction, the privileges required are low and the impact on confidentiality, integrity, and availability is limited but non-negligible. No known exploits have been observed in the wild yet, but public disclosure increases the risk of exploitation attempts. The lack of vendor response and patch availability heightens the urgency for organizations to implement mitigations. This vulnerability highlights the critical need for proper input validation and secure coding practices in cloud task scheduling components, which often run with elevated privileges and can impact cloud infrastructure stability and security.

The impact of CVE-2026-3064 on organizations worldwide can be significant, particularly for those relying on HummerRisk for cloud task scheduling and resource management. Successful exploitation allows attackers to execute arbitrary commands remotely, potentially leading to unauthorized access, data leakage, or disruption of cloud services. Although the required privileges are low, attackers could leverage this vulnerability to escalate privileges or pivot within the network. The compromise of cloud task schedulers can disrupt automated workflows, degrade service availability, and undermine trust in cloud infrastructure. Organizations in sectors with critical cloud deployments—such as finance, healthcare, and government—face increased risks of operational disruption and data breaches. The absence of vendor patches means organizations must rely on compensating controls, increasing operational complexity and risk. Additionally, public disclosure without mitigation increases the likelihood of exploitation attempts, potentially leading to widespread impact if not addressed promptly.

To mitigate CVE-2026-3064, organizations should implement the following specific measures: 1) Immediately audit and restrict access to the Cloud Task Scheduler component, limiting usage to trusted administrators and systems. 2) Implement strict input validation and sanitization for the regionId parameter at the application or proxy level to block malicious payloads before they reach the scheduler. 3) Employ application-layer firewalls or intrusion prevention systems (IPS) with custom rules to detect and block command injection patterns targeting the regionId parameter. 4) Isolate the Cloud Task Scheduler in a hardened environment with minimal privileges and network segmentation to contain potential exploitation. 5) Monitor logs and system behavior for unusual command executions or anomalies related to the scheduler service. 6) Engage in threat hunting for indicators of compromise related to this vulnerability. 7) If possible, consider disabling or replacing the affected component until a vendor patch is available. 8) Maintain up-to-date backups and incident response plans tailored to potential command injection attacks. These targeted actions go beyond generic advice by focusing on the specific vulnerable parameter and component, reducing attack surface and improving detection capabilities.