This vulnerability (CVE-2026-41611) in Microsoft Visual Studio Code 1.0.0 is caused by improper neutralization of script-related HTML tags in a web page context, classified under CWE-80 (Improper Neutralization of Script-Related HTML Tags). It enables an attacker to execute arbitrary code locally by exploiting a basic cross-site scripting (XSS) flaw. The CVSS 3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.

Successful exploitation allows an unauthorized attacker to execute arbitrary code locally within Visual Studio Code, potentially compromising confidentiality, integrity, and availability of the affected system. The vulnerability is rated high severity with a CVSS score of 7.8. There are no known exploits in the wild at this time.

An official fix is available from Microsoft. Users should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41611 to remediate this vulnerability.