HIGHCVE-2026-21523Published Modified CNA microsoft
CVE-2026-21523: GitHub Copilot and Visual Studio Code Remote Code Execution Vulnerability
Time-of-check time-of-use (toctou) race condition in GitHub Copilot and Visual Studio allows an authorized attacker to execute code over a network.
Metrics
- CVSS v3.1
- 8.0
- Severity
- HIGH
- Fixed in
- 0.37.1
- Affected Products
- 2
Fix available
0.37.11.110.1
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:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C