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HIGHCVE-2026-21518Published Modified CNA microsoft

CVE-2026-21518: GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability

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.

Metrics

CVSS v3.1
8.8
Severity
HIGH
Fixed in
0.37.1
Affected Products
2

Fix available

0.37.11.110.1
Patch commits
Affected packages
  • Microsoft / Microsoft Visual Studio Code CoPilot Chat Extension
    < 0.37.1 (from 0.27.0)
  • Microsoft / Visual Studio Code
    < 1.110.1 (from 1.0.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
CVE-2026-21518: GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability | HarborGuard CVE