CVE-2026-21516
Analyzed Analyzed - Analysis Complete

Command Injection in GitHub Copilot Enables Remote Code Execution

Vulnerability report for CVE-2026-21516, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-02-10

Last updated on: 2026-02-11

Assigner: Microsoft Corporation

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-02-10
Last Modified
2026-02-11
Generated
2026-07-06
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft github_copilot to 1.5.63-243 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a command injection flaw in Github Copilot caused by improper neutralization of special elements used in commands. It allows an unauthorized attacker to execute arbitrary code remotely over a network.

Impact Analysis

The vulnerability can have severe impacts including unauthorized remote code execution, which may lead to full compromise of the affected system. This can result in loss of confidentiality, integrity, and availability of data and services.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

I don't know

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-21516. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart