CVE-2026-16898
Undergoing Analysis Undergoing Analysis - In Progress

IBM i Local File Ownership Change Vulnerability

Vulnerability report for CVE-2026-16898, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: IBM Corporation

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local authenticated attacker to change the ownership of arbitrary files due to improper validation of an attacker-controlled file path.

CVSS Scores

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-14
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
ibm i 7.6
ibm i 7.5
ibm i 7.4
ibm i 7.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-73 The product allows user input to control or influence paths or file names that are used in filesystem operations.

Attack-Flow Graph

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Executive Summary

This vulnerability in IBM i 7.6, 7.5, 7.4, and 7.3 allows a local authenticated attacker to change ownership of arbitrary files due to improper validation of an attacker-controlled file path.

Impact Analysis

An attacker could exploit this to modify file permissions, potentially gaining unauthorized access to sensitive data or disrupting system operations. This could lead to data breaches, system instability, or privilege escalation on affected IBM i systems.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, violating compliance requirements for GDPR, HIPAA, and other regulations. Organizations may face penalties, legal consequences, or reputational damage if exploited.

Mitigation Strategies

Apply IBM i PTFs or updates to address improper file path validation. Restrict local authenticated user permissions to prevent unauthorized file ownership changes.

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