CVE-2026-21518
Analyzed Analyzed - Analysis Complete

Command Injection in GitHub Copilot and VS Code Enables Bypass

Vulnerability report for CVE-2026-21518, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-02-10

Last updated on: 2026-02-23

Assigner: Microsoft Corporation

Description

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-02-10
Last Modified
2026-02-23
Generated
2026-07-06
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-05
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft visual_studio_code to 1.109.2 (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

[{'type': 'paragraph', 'content': "This vulnerability is an improper neutralization of special elements used in a command, also known as 'command injection', found in GitHub Copilot and Visual Studio Code."}, {'type': 'paragraph', 'content': 'It allows an unauthorized attacker to bypass a security feature over a network by exploiting this flaw.'}] [1]

Impact Analysis

The vulnerability can allow an unauthorized attacker to bypass security features remotely, which may lead to unauthorized actions or compromise of the affected software.

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-2026-21518. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart