CVE-2026-18554
7.5IBM · Db2 Mirror for i
IBM Db2 Mirror for i contains a path traversal vulnerability that could allow an unauthenticated remote attacker to access sensitive files outside of the intended directory.
Executive summary
A path traversal vulnerability in IBM Db2 Mirror for i 7.4, 7.5, and 7.6 enables unauthenticated remote attackers to perform unauthorized file access.
Vulnerability
This is classified as CWE-22, Improper Limitation of a Pathname to a Restricted Directory. The application fails to sanitize user inputs, allowing an attacker to traverse the file system and access restricted resources.
Business impact
With a CVSS score of 7.5, this vulnerability represents a severe threat to data confidentiality. An attacker could potentially read sensitive configuration files or database contents, which could be leveraged to further compromise the system or exfiltrate proprietary business information.
Remediation
Immediate Action: Update the affected IBM Db2 Mirror for i systems by applying the appropriate PTF: SJ10947 (7.4), SJ10961 (7.5), or SJ10948 (7.6).
Proactive Monitoring: Inspect web server and application logs for directory traversal patterns, such as the presence of double dots and slashes (../) in request parameters.
Compensating Controls: Deploy a Web Application Firewall (WAF) with signatures designed to detect and block common path traversal attack payloads.
Exploitation status
Public Exploit Available: No
Analyst recommendation
Path traversal flaws are a frequent target for attackers seeking to map internal system structures. It is essential to apply the vendor-provided updates immediately to secure the file system against unauthorized access.