CVE-2026-19532 in Liman MYS
Summary
by MITRE • 09/24/2026
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in HAVELSAN Inc. Liman MYS allows Path Traversal.
This issue affects Liman MYS: from 2.3.2 before 2.3.4-1124.
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Analysis
by VulDB Data Team • 09/24/2026
The identified security flaw represents a classic path traversal vulnerability within the HAVELSAN Inc. Liman Management and Security System, specifically affecting versions ranging from 2.3.2 up to but not including version 2.3.4-1124. This type of weakness is formally categorized under CWE-22: Improper Limitation of a Pathname to a Restricted Directory in the Common Weakness Enumeration database. The core technical issue stems from insufficient validation or sanitization of user-supplied input that dictates file system paths. When an application constructs file paths using external data without properly restricting access to intended directories, it allows attackers to manipulate those paths by injecting special characters such as dot-dot-slash sequences. This manipulation enables the traversal outside the designated restricted directory structure into other parts of the underlying operating system's file hierarchy.
From a technical perspective, this vulnerability likely exists in an endpoint or function within Liman MYS that processes requests for reading, writing, or deleting files. If the application accepts parameters like filenames or directory paths and directly concatenates them with base directories without checking for relative path components, it creates an exploitable condition. An attacker can craft a malicious request containing sequences designed to escape the web root or application-specific sandbox. For instance, by appending characters that move up one level in the directory tree followed by access to sensitive files such as configuration files, source code, or system credentials, the attacker gains unauthorized read or write capabilities. This bypasses the intended isolation mechanisms and exposes internal data structures that should remain hidden from end users or unprivileged entities.
The operational impact of this vulnerability is severe due to the nature of management systems like Liman MYS, which typically handle sensitive security policies, user credentials, network configurations, and audit logs. Successful exploitation could lead to unauthorized disclosure of confidential information, allowing attackers to harvest administrative passwords, encryption keys, or internal network topology details. Furthermore, if write permissions are inadvertently exposed through this path traversal mechanism, the consequences escalate significantly. Attackers could modify critical configuration files to disable security controls, inject malicious scripts for persistent access, or overwrite system binaries, effectively compromising the integrity and availability of the entire infrastructure protected by Liman MYS. This aligns with ATT&CK technique T1083: File and Directory Discovery, where adversaries explore the file system to locate valuable targets before executing further exploitation steps such as data exfiltration or lateral movement.
Mitigation strategies must focus on both immediate remediation and long-term defensive coding practices. The primary solution is for HAVELSAN Inc. to release a patch that addresses this flaw in version 2.3.4-1124 or later, which should include rigorous input validation and canonicalization of file paths before processing. Administrators running affected versions must apply the vendor-provided update as soon as possible to close this attack vector. In environments where immediate patching is not feasible due to operational constraints, network-level controls such as web application firewalls can be configured to detect and block requests containing path traversal patterns like dot-dot-slash sequences or encoded variants thereof. Additionally, implementing strict file system permissions ensures that even if an attacker successfully traverses directories, they lack the necessary operating system privileges to read sensitive files or modify critical configurations. Regular security audits and static code analysis tools should be employed during development cycles to identify similar input handling weaknesses before deployment into production environments.