CVE-2026-110265 in runZero
Summary
by MITRE • 11/03/2026
A specially crafted malformed search query could return results from outside a user's organization. Log analysis of runZero's hosted environment found only testing of the issue and no adversary traffic. This issue was fixed in version 5.1.261013.1.
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Analysis
by VulDB Data Team • 11/03/2026
The vulnerability described involves an authorization bypass within the search functionality of the affected software, specifically allowing a user to retrieve data that falls outside their designated organizational scope. This type of flaw is classified under CWE-862, which denotes Missing Authorization, and often aligns with ATT&CK technique T1078, Valid Accounts, where attackers leverage legitimate credentials but exploit logic errors to access restricted resources. The core technical issue stems from insufficient validation of the user's context or permissions when processing search queries. Instead of strictly filtering results based on the authenticated user's organizational boundaries, the application fails to enforce these constraints effectively during the data retrieval process. This allows a specially crafted malformed query to bypass internal checks and return sensitive information belonging to other organizations within the same multi-tenant environment.
The operational impact of this vulnerability is significant in environments where strict data isolation between tenants or departments is required for compliance with regulations such as GDPR, HIPAA, or SOC2. An attacker who gains access to a valid account could potentially exfiltrate proprietary business information, customer data, or internal infrastructure details belonging to other entities sharing the platform. This breach of confidentiality undermines trust in the service and can lead to severe legal and reputational consequences for both the affected organizations and the software vendor. The ability to retrieve out-of-scope results effectively breaks the logical isolation model that multi-tenant architectures rely upon to ensure data privacy and security.
Log analysis conducted by runZero's hosted environment indicates that while this vulnerability was actively tested, there is no evidence of malicious exploitation or adversary traffic targeting this specific flaw in production systems. This suggests that either the issue was discovered through internal testing before widespread exposure, or potential attackers have not yet prioritized exploiting this particular vector despite its availability. Nevertheless, the presence of test activity highlights the importance of continuous monitoring and proactive vulnerability management to detect such attempts early.
To mitigate this risk, organizations should ensure they are running version 5.1.261013.1 or later, where the issue has been resolved through improved input validation and stricter enforcement of organizational boundaries during search operations. Administrators should also implement robust access control policies that limit user privileges to only those necessary for their roles, adhering to the principle of least privilege. Regular security audits and penetration testing can help identify similar logic flaws in other parts of the application before they are exploited by malicious actors.