CVE-2026-19047 in LudusMCP
Summary
by MITRE • 08/06/2026
A vulnerability was detected in NocteDefensor LudusMCP up to 1.0.24. This affects the function executeArbitraryCommand/executeCommand of the file src/ludusMCP/cliWrapper.ts of the component ludus_cli_execute. Performing a manipulation of the argument command/args results in command injection. The attack needs to be approached locally. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 08/06/2026
The vulnerability identified in NocteDefensor LudusMCP version 1.0.24 represents a critical command injection flaw within the ludus_cli_execute component. This security weakness resides in the executeArbitraryCommand/executeCommand function located in src/ludusMCP/cliWrapper.ts file, where user-supplied input is directly incorporated into system commands without proper sanitization or validation. The vulnerability manifests when attackers manipulate the command or args arguments, allowing them to inject malicious commands that will be executed with the privileges of the affected application. This type of vulnerability falls under CWE-78 which specifically addresses improper neutralization of special elements used in OS commands, making it a well-documented and dangerous class of security flaw.
The operational impact of this command injection vulnerability is significant as it enables local attackers to execute arbitrary code on the system where LudusMCP is running. Since the attack requires only local access, threat actors who already have system-level privileges or can gain such access through other means can leverage this vulnerability to escalate their privileges, gain unauthorized access to sensitive data, or compromise the entire system. The vulnerability's location within the CLI wrapper component suggests that it could potentially be exploited to execute any command available to the application's user context, making it particularly dangerous for systems where the application runs with elevated privileges.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1059 which covers command and scripting interpreter, specifically targeting the execution of malicious commands through legitimate system interfaces. The local requirement for exploitation reduces the attack surface compared to remote vulnerabilities but still presents a substantial risk in environments where local access is possible. Security practitioners should note that this vulnerability represents a classic example of inadequate input validation and sanitization, which is one of the most common causes of command injection attacks across various software systems.
The recommended mitigation strategies include implementing proper input validation and sanitization mechanisms within the cliWrapper.ts file to prevent malicious command sequences from being executed. The application should employ parameterized command execution where possible, avoiding direct string concatenation with user inputs. Additionally, privilege separation techniques should be implemented to ensure that the application does not run with unnecessary elevated privileges. Organizations should also consider implementing input whitelisting for command parameters and conducting thorough code reviews to identify similar patterns in other parts of the codebase. The lack of response from the project team after initial reporting highlights the importance of maintaining security awareness and following up on vulnerability disclosures to ensure timely remediation.