CVE-2026-105407 in Tuleap Enterprise Edition
Summary
by MITRE • 10/12/2026
An OS Command Injection vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5 could allow an attacker to execute arbitrary commands on the server.
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Analysis
by VulDB Data Team • 10/12/2026
The identified security flaw represents a critical OS command injection vulnerability within Tuleal Enterprise Edition, specifically impacting versions ranging from 17.0 up to and including 17.5. This type of vulnerability arises when an application constructs operating system commands using unsanitized user-supplied input without adequate validation or escaping mechanisms. In the context of enterprise software like Tuleap, which serves as a comprehensive platform for project management, bug tracking, and collaborative development, such a flaw poses a severe risk to the integrity and availability of organizational infrastructure. The vulnerability allows an authenticated attacker who has access to specific features within the application interface to inject malicious shell commands that are subsequently executed by the underlying operating system with the privileges of the web server process or the user account running the Tuleap service.
From a technical perspective, command injection vulnerabilities typically occur when developer code passes data directly into system calls such as exec, popen, or similar functions without properly sanitizing special characters like semicolons, ampersands, pipes, or backticks. An attacker can exploit this by crafting input fields that terminate the intended command and append additional malicious commands. For instance, if a feature allows users to specify a file name for export or import operations, an attacker might supply a filename containing shell metacharacters followed by arbitrary system commands. Because Tuleap handles sensitive project data and integrates with various external tools, successful exploitation could lead to the compromise of not only the application server but potentially other systems on the same network segment if lateral movement is possible from the compromised host.
The operational impact of this vulnerability extends beyond simple remote code execution. It can result in unauthorized access to confidential intellectual property stored within the project management system, including source code repositories, design documents, and business strategies. Furthermore, attackers could use the elevated privileges gained through command injection to modify application configurations, install backdoors for persistent access, or pivot into other critical systems connected to the Tuleap server. This undermines the confidentiality, integrity, and availability principles of information security, potentially leading to significant financial loss, regulatory non-compliance, and reputational damage for organizations relying on this platform for their development workflows.
This vulnerability aligns with Common Weakness Enumeration identifier CWE-78, which specifically defines Improper Neutralization of Special Elements used in an OS Command, commonly known as OS Command Injection. It also maps to the MITRE ATT&CK framework under techniques such as T1059, Command and Scripting Interpreter, where adversaries use command-line interfaces or scripting languages like PowerShell or Bash to execute malicious payloads. The exploitation path often involves initial access through valid credentials followed by privilege escalation via system-level commands, fitting into broader attack chains that aim at data exfiltration or disruption of services.
To mitigate this risk, organizations running Tuleap Enterprise Edition versions 17.0 through 17.5 must immediately apply the vendor-provided security patches to upgrade to a version where the input validation and output encoding mechanisms have been strengthened. Developers should review any custom integrations or plugins that interact with system commands to ensure they adhere to secure coding practices, such as using parameterized APIs instead of string concatenation for command construction. Additionally, implementing strict web application firewall rules can help detect and block common injection patterns in HTTP requests before they reach the application logic. Regular security audits and penetration testing focused on input validation are recommended to identify similar weaknesses across other modules within the platform.