CVE-2026-21518

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-21518
Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21518 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:-:*:*
History

23 Feb 2026, 17:23

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 6.5 		v2 : unknown
v3 : 8.8

11 Feb 2026, 21:34

Type Values Removed Values Added
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21518 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21518 - Vendor Advisory
First Time Microsoft visual Studio Code
Microsoft
CPE cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:-:*:*

10 Feb 2026, 18:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-10 18:16

Updated : 2026-02-23 17:23

NVD link : CVE-2026-21518

Mitre link : CVE-2026-21518

CVE.ORG link : CVE-2026-21518

JSON object : View

Products Affected

microsoft

  • visual_studio_code
CWE
CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')