CVE-2026-21516
High
Description
Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an unauthorized attacker to execute code over a network.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Microsoft Github Copilot
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-77Command injection
How to fix
Update
- microsoft github_copilot1.5.63-243 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft github_copilot | v < 1.5.63-243 | 1.5.63-243 |
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