CVE-2026-34492 in Airwall
Summary
by MITRE • 08/14/2026
External control of file name or path vulnerability in Johnson Controls Airwall allows : File Manipulation.
This issue affects Airwall: before 4.1.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 08/14/2026
The vulnerability identified as external control of file name or path in Johnson Controls Airwall represents a critical security weakness that enables unauthorized file manipulation operations within the affected system. This type of vulnerability falls under the common weakness enumeration CWE-73, which specifically addresses the dangerous use of external control of file names or paths in software applications. The flaw allows attackers to manipulate file paths and names through external inputs, potentially leading to arbitrary file access, modification, or deletion within the Airwall system's operational environment.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization mechanisms within the Airwall application's file handling processes. When the system processes user-supplied data that influences file operations, it fails to properly validate or sanitize the input parameters before using them in file path construction or manipulation routines. This creates an opportunity for malicious actors to inject specially crafted file paths that can bypass normal access controls and execute unauthorized operations on system files.
The operational impact of this vulnerability extends beyond simple file manipulation capabilities and represents a significant threat to the overall security posture of Johnson Controls Airwall deployments. Attackers could potentially exploit this weakness to overwrite critical system files, inject malicious code into the application's file handling routines, or gain access to sensitive configuration data that could compromise the entire network infrastructure protected by the Airwall system. The vulnerability affects all versions prior to 4.1, indicating that organizations running older releases remain exposed to these risks.
Security professionals should prioritize immediate mitigation of this vulnerability through the deployment of the official 4.1 update or patch release provided by Johnson Controls, which addresses the underlying file path validation issues. Additional protective measures include implementing strict input validation at all entry points where file operations are performed, enforcing least privilege access controls for file system operations, and conducting comprehensive security assessments of all file handling code within the application. This vulnerability aligns with several tactics identified in the mitre att&ck framework under the execution and persistence categories, as it enables attackers to manipulate system files and potentially establish long-term access to affected environments.
Organizations should also implement network segmentation strategies to limit the potential impact of successful exploitation attempts, combined with robust monitoring solutions that can detect unusual file manipulation activities within their Airwall deployments. The vulnerability demonstrates the importance of proper input sanitization and validation in preventing path traversal attacks, which remain prevalent across various software applications and represent a fundamental security principle that should be enforced throughout all development lifecycle processes.