CVE-2026-21523
High
Description
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.
SeverityHigh
CVSS8.0
Exploit probability—
Product
Microsoft Visual Studio Code
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-367CWE-367
How to fix
Update
- microsoft visual_studio_code1.109.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft visual_studio_code | v < 1.109.2 | 1.109.2 |
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