CVE-2026-21516

HIGH
2026-02-10 [email protected]
8.8
CVSS 3.1
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CVSS Vector

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

Tags

Github Command Injection AI / ML Github Copilot

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.

Analysis

GitHub Copilot is vulnerable to command injection attacks that enable remote code execution without requiring authentication or user interaction beyond a click. An attacker can exploit this network-accessible vulnerability to execute arbitrary commands on affected systems. …

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Remediation

Within 24 hours: Audit all GitHub Copilot usage across the organization and identify critical projects where it is actively used. Within 7 days: Implement network segmentation to restrict Copilot's outbound communication and enforce code review processes for all AI-generated code. …

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +44
POC: 0

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CVE-2026-21516 vulnerability details – vuln.today
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