CVE-2026-17173 in Db2 Mirror for i
Summary
by MITRE • 08/14/2026
IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of file paths.
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Analysis
by VulDB Data Team • 08/14/2026
This vulnerability resides in IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6 where a remote authenticated attacker can exploit improper validation of file paths to gain access to sensitive information. The flaw represents a path traversal vulnerability that allows an attacker with valid credentials to manipulate file path parameters and access files outside the intended directory structure. This type of vulnerability typically falls under CWE-22 Path Traversal or CWE-73 Path Traversal, where insufficient input validation permits attackers to navigate beyond the intended file system boundaries. The security impact is significant as it enables unauthorized data access that could include database configuration files, user credentials, system logs, or other sensitive administrative information.
The technical execution of this vulnerability occurs when authenticated users submit malicious file path parameters through the Db2 Mirror interface or related administrative functions. The system fails to properly sanitize or validate these paths before processing them, allowing attackers to use sequences such as ../ or ..\ to move up directory levels and access restricted files. This weakness is particularly dangerous in database environments where sensitive information is often stored in structured formats that may contain configuration details, encryption keys, or user authentication data. The vulnerability affects the underlying file system access controls rather than the database itself, making it a critical concern for data protection and confidentiality.
Operational impacts of this vulnerability extend beyond simple information disclosure to potentially enable further exploitation attempts within the compromised environment. An attacker who successfully exploits this vulnerability could gain insights into the system architecture, identify additional attack vectors, or extract credentials that might lead to privilege escalation. The remote authenticated nature means that attackers do not need physical access to the system but can exploit the weakness from network locations. This vulnerability aligns with ATT&CK technique T1083 File and Directory Discovery, where adversaries attempt to enumerate file systems and identify sensitive data locations through various access methods.
Organizations should implement immediate mitigations including applying the latest security patches provided by IBM, implementing strict input validation for all file path parameters, and configuring appropriate access controls to limit the scope of file system operations. Network segmentation and monitoring of administrative access patterns can help detect potential exploitation attempts. Additionally, regular security assessments should validate that file path handling mechanisms properly sanitize user inputs and implement proper boundary checks. The vulnerability underscores the importance of secure coding practices in database management systems and highlights the need for continuous security validation of enterprise software components to prevent unauthorized access to sensitive information assets.