CVE-2026-3064 is a medium-severity command injection vulnerability affecting HummerRisk versions 1.0 through 1.5.0. The vulnerability exists in the Cloud Task Scheduler component, specifically within the ResourceCreateService.java file. The issue stems from insufficient validation or sanitization of the regionId parameter, which is manipulated to inject arbitrary operating system commands. Because the attack vector is network-based (AV:N), an attacker can remotely exploit this flaw without requiring user interaction (UI:N). However, the attacker needs low privileges (PR:L) on the system to exploit the vulnerability. The vulnerability impacts confidentiality, integrity, and availability to a limited extent (VC:L, VI:L, VA:L), as the attacker can execute commands that may lead to data leakage, modification, or service disruption. The vulnerability scope is unchanged (S:N), meaning it affects only the vulnerable component. The exploit has been publicly disclosed, but no known exploits are currently active in the wild. The vendor was notified early but has not issued any patches or advisories. This lack of vendor response increases the risk for organizations relying on this software. The vulnerability is particularly concerning in cloud environments where HummerRisk is used for task scheduling, as command injection can lead to full system compromise or lateral movement within the network.

The potential impact of CVE-2026-3064 is significant for organizations using affected versions of HummerRisk. Successful exploitation allows remote attackers with low privileges to execute arbitrary commands on the underlying system, potentially leading to unauthorized data access, data modification, or disruption of services. This could result in operational downtime, data breaches, or further compromise of internal networks. Since the vulnerability affects a cloud task scheduling component, attackers might leverage this to manipulate scheduled tasks, escalate privileges, or deploy persistent backdoors. The absence of vendor patches and the public disclosure of exploit details increase the risk of exploitation attempts. Organizations in sectors relying heavily on cloud infrastructure and automated task scheduling, such as finance, healthcare, and critical infrastructure, face heightened risks. Additionally, the vulnerability could be leveraged as a foothold for broader attacks within enterprise environments.

Given the lack of official patches, organizations should implement immediate compensating controls. First, restrict network access to the Cloud Task Scheduler component by enforcing strict firewall rules and network segmentation to limit exposure to trusted sources only. Second, apply input validation and sanitization at the application or proxy level to detect and block malicious payloads targeting the regionId parameter. Third, monitor logs and system behavior for unusual command execution patterns or anomalies related to task scheduling. Fourth, enforce the principle of least privilege by ensuring that accounts interacting with the vulnerable component have minimal permissions. Fifth, consider deploying runtime application self-protection (RASP) or web application firewalls (WAF) with custom rules to detect command injection attempts. Finally, maintain an incident response plan ready to address potential exploitation and keep abreast of vendor updates or community patches to apply as soon as they become available.