CVE-2026-110233 in Rovr
Summary
by MITRE • 10/13/2026
Rovr through 0.10.3 on Windows contains an OS command injection vulnerability that allows attackers to execute commands by crafting malicious file names. Attackers can deliver a file named with shell metacharacters like & alongside a payload, which runs with user privileges when the file is opened through open_file.
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Analysis
by VulDB Data Team • 10/15/2026
The software Rovr, specifically in versions up to 0.10.3 running on Windows operating systems, suffers from an OS command injection vulnerability rooted in improper neutralization of special elements used in an operating system command. This flaw arises when the application processes file names provided by users without adequate sanitization or validation mechanisms. The core technical issue lies within the open_file function, which accepts user-supplied input for file paths and names but fails to escape or filter shell metacharacters effectively. When a malicious actor crafts a filename containing special characters such as ampersands (&), semicolons (;), pipes (|), or other command separators specific to the Windows Command Prompt or PowerShell environments, these characters are interpreted by the underlying operating system rather than treated as literal parts of the file name.
This vulnerability allows an attacker to achieve arbitrary code execution on the target system with the privileges of the user currently running the application. The attack vector typically involves social engineering or a supply chain compromise where the victim is tricked into opening a specially crafted file through Rovr's interface. For instance, if a user opens a file named payload.exe & malicious_command.bat, the ampersand acts as a command separator in Windows shell environments. Consequently, after attempting to open the intended file, the system proceeds to execute the subsequent malicious command immediately. This execution occurs within the context of the invoking process, meaning that if Rovr is run with standard user privileges, the injected commands will also operate under those limited permissions. However, if the application is executed with administrative rights or elevated privileges, the impact escalates significantly, potentially allowing full system compromise, installation of persistent backdoors, data exfiltration, or lateral movement within a network environment.
From an industry standards perspective, this vulnerability aligns closely with CWE-78, which defines Improper Neutralization of Special Elements used in an OS Command, commonly known as OS Command Injection. The exploitation technique maps to the MITRE ATT&CK framework under T1059, specifically sub-techniques related to command and script interpreters such as Windows Command Shell (T1059.003) or PowerShell (T1059.001). These mappings highlight that the root cause is a failure in input validation at the point of execution, rather than a flaw in network protocol handling or memory management. The vulnerability represents a classic case where developer trust in user-supplied data leads to security-critical failures in application logic.
To mitigate this risk, immediate updates to Rovr version 0.10.4 or later are recommended if available, as the vendor likely addressed the input validation issues in subsequent releases. In environments where updating is not immediately feasible, defensive measures should focus on strict input sanitization and output encoding principles applied at the application level. Developers must ensure that all file names and paths passed to system commands are validated against a whitelist of allowed characters or properly escaped using language-specific functions designed for safe command construction. Additionally, implementing least privilege principles by running applications with minimal necessary permissions can reduce the blast radius of successful exploitation. Security monitoring should also be enhanced to detect unusual process creation events originating from file-handling applications, particularly those involving shell interpreters launching unexpectedly after a user action like opening a document or media file.