CVE-2026-18178

Analyzed Analyzed - Analysis Complete

Path Traversal in IBM Db2 Mirror for i

Publication date: 2026-08-14

Last updated on: 2026-08-21

Assigner: IBM Corporation

Description

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to delete arbitrary files due to path traversal.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-14

Last Modified

2026-08-21

Generated

2026-09-04

AI Q&A

2026-08-14

EPSS Evaluated

2026-09-02

NVD

CVE-2026-18178

EUVD

EUVD-2026-58769

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	db2_mirror_for_i	From 7.4 (inc) to 7.6 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6 are vulnerable to a path traversal flaw. A remote authenticated attacker could exploit this to delete arbitrary files on the system by sending specially crafted requests.

Detection Guidance

This vulnerability involves path traversal in IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6. Detection requires checking for unauthorized file deletion attempts or suspicious file access patterns in logs. Review IBM Db2 Mirror logs for unusual file operations, especially those involving path traversal sequences like '../'. Monitor network traffic for abnormal requests targeting the Db2 Mirror service.

Impact Analysis

This vulnerability allows an attacker to delete critical files, potentially causing data loss, system instability, or denial of service. It requires authentication but could disrupt database operations or other dependent services.

Compliance Impact

The vulnerability allows remote authenticated attackers to delete arbitrary files via path traversal, which could lead to unauthorized data deletion or corruption. This may impact compliance with regulations like GDPR (data integrity and availability) and HIPAA (data integrity and security) by compromising data integrity and availability.

Mitigation Strategies

Apply the latest IBM Db2 Mirror for i patches or updates to address the path traversal vulnerability. Restrict remote authenticated user access to only necessary permissions and monitor for unusual file deletion activities.

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