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Github CVE-2026-21518

HIGH
Command Injection (CWE-77)
2026-02-10 secure@microsoft.com
Command Injection Github AI / ML Visual Studio Code
8.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 10, 2026 - 18:16 nvd
HIGH 8.8

DescriptionNVD

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.

AnalysisAI

GitHub Copilot and Visual Studio Code are vulnerable to command injection attacks that allow unauthenticated attackers to bypass security features over the network through improper neutralization of special command elements. The vulnerability requires user interaction to exploit and could enable attackers to execute arbitrary commands with high impact on confidentiality, integrity, and availability. …

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RemediationAI

Within 24 hours: Inventory all instances of GitHub Copilot and VS Code across the organization and disable Copilot features until mitigation is confirmed. Within 7 days: Implement network segmentation to restrict Copilot's external communications, review logs for suspicious activity, and communicate interim guidance to development teams. …

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CVE-2026-21518 vulnerability details – vuln.today
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