#VU122622 Command Injection in Visual Studio Code - CVE-2026-21518

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Main Vulnerability Database Vulnerabilities #VU122622

#VU122622 Command Injection in Visual Studio Code - CVE-2026-21518

Published: February 10, 2026 / Updated: February 19, 2026


Vulnerability identifier: #VU122622
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-21518
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Visual Studio Code
Software vendor:
Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the system.

The vulnerability exists due to insufficient input validation in GitHub Copilot and Visual Studio Code where workspace trust was not always demanded to start MCP servers. A remote attacker can pass specially crafted data to the application and execute arbitrary commands.


Remediation

Install updates from vendor's website.

External links