CVE-2026-2256: Command Injection in ModelScope MS-Agent

The Command Injection vulnerability in MS-Agent poses a significant risk because it allows an attacker to gain complete control over the underlying system. By crafting malicious prompts, an attacker can inject and execute arbitrary OS commands, potentially leading to data breaches, system compromise, and denial of service. The blast radius extends to any data processed or stored by the MS-Agent, and successful exploitation could facilitate lateral movement within the network if the agent has sufficient privileges. This vulnerability shares similarities with other prompt injection attacks targeting AI models, where malicious input is used to bypass security controls and execute unintended actions.

1. Reserved2026-02-09
2. Published2026-03-02
3. Modified2026-03-04
4. EPSS updated2026-03-23

Due to the lack of a specific patched version, immediate mitigation focuses on input validation and sanitization. Implement strict input validation routines to filter and sanitize all prompts received by the MS-Agent, preventing the injection of malicious commands. Consider using a Web Application Firewall (WAF) or proxy to inspect and block suspicious requests. Restrict the MS-Agent's access to sensitive resources and limit its privileges to the bare minimum required for its operation. Monitor system logs for unusual activity or command execution attempts. After a patched version is released, upgrade MS-Agent to the latest version immediately to eliminate the vulnerability.