CVE-2026-15435

Undergoing Analysis Undergoing Analysis - In Progress

IBM App Connect Enterprise Path Traversal Vulnerability

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: IBM Corporation

Description

IBM App Connect Enterprise 13.0.1.0 through 13.0.7.2, and 12.0.1.0 through 12.0.12.27 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-30

Last Modified

2026-07-30

Generated

2026-07-31

AI Q&A

2026-07-31

EPSS Evaluated

N/A

NVD

CVE-2026-15435

EUVD

EUVD-2026-51138

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	app_connect_enterprise	From 13.0.1.0 (inc) to 13.0.7.2 (inc)
ibm	app_connect_enterprise	From 12.0.1.0 (inc) to 12.0.12.27 (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

This vulnerability allows a remote attacker to traverse directories on the system by sending a specially crafted URL request containing 'dot dot' sequences (/../). This could enable the attacker to write arbitrary files on the system.

Detection Guidance

This vulnerability involves directory traversal via specially crafted URLs containing '/../' sequences. To detect it, monitor web server logs for unusual requests with 'dot dot' sequences or attempts to access parent directories. Check for unexpected file writes in system directories. Use tools like grep to search logs: grep -r '../' /var/log/apache2/ or similar paths depending on your web server. Inspect file system changes with tools like auditd or Tripwire.

Impact Analysis

An attacker could exploit this to write malicious files on your system, potentially leading to unauthorized access, data theft, or system compromise. The high CVSS score indicates severe impact on confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements and HIPAA's security rules. Non-compliance may result in legal penalties or reputational damage.

Mitigation Strategies

Apply the latest IBM App Connect Enterprise patches immediately to versions beyond 13.0.7.2 or 12.0.12.27. Disable directory traversal by configuring strict URL validation in your web server or proxy settings. Monitor network traffic for unusual requests containing '/../' sequences.

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