gcdRadar
archive/Patch now/AIR-2026-0958
closedclosed 10 Feb 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-21518: Command Injection Vulnerability in GitHub Copilot and VS Code

GitHub Copilot, Visual Studio Code

An improper neutralization of special elements in GitHub Copilot and Visual Studio Code permits an unauthorized attacker to bypass security features over a network. A patch addresses the command injection risk.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
8.8
EPSS
0.01 · top 27% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
10 Feb 2026
last update
10 Feb 2026
CVE ids
CVE-2026-21518other records

Timeline · 1

  1. 10 Feb 2026CVE-2026-21518: Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code…

Sources · 1

Advisories and databases

  1. 2026-02-10
    CVE-2026-21518: Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-21518

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Microsoft
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
github-copilotcommand-injection
dates
happened 10 Feb 2026 · first reported 10 Feb 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-21518: Command Injection Vulnerability in GitHub Copilot and VS Code

https://gcdradar.vercel.app/incidents/cve-2026-21518-command-injection-vulnerability-in-github-cop · AIR-2026-0958 · closed 2026-02-10

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-02-10
- AI role: Attack on AI
- Products: GitHub Copilot, Visual Studio Code
- CVE ids: CVE-2026-21518
- CVSS: 8.8

## Summary

An improper neutralization of special elements in GitHub Copilot and Visual Studio Code permits an unauthorized attacker to bypass security features over a network. A patch addresses the command injection risk.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-02-10: CVE-2026-21518: Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code… (https://nvd.nist.gov/vuln/detail/CVE-2026-21518)

## Sources

- 2026-02-10 NVD: CVE-2026-21518: Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code… https://nvd.nist.gov/vuln/detail/CVE-2026-21518

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

Related

  1. closed6.5
    GitHub Copilot CVE-2026-47282: Credential disclosure vulnerability in GitHub Copilot

    Patch now · Disclosed · since 14 Jul 2026 · CVE-2026-47282

    AI
  2. closed6.5
    GitHub Copilot CVE-2026-50519: Insecure resource default in GitHub Copilot and VS Code allows info disclosure

    Patch now · Disclosed · since 19 Jun 2026 · CVE-2026-50519

    AI
  3. closed8.4
    GitHub Copilot CVE-2026-45482: Path Traversal Vulnerability in GitHub Copilot and VS Code

    Patch now · Disclosed · since 9 Jun 2026 · CVE-2026-45482

    AI
  4. closed5.7
    GitHub Copilot CVE-2026-23653: Command Injection Flaw in GitHub Copilot and VS Code

    Patch now · Disclosed · since 14 Apr 2026 · CVE-2026-23653

    AI
  5. closed5.7
    GitHub Copilot CVE-2025-64660: GitHub Copilot and VS Code Access Control Vulnerability

    Patch now · Disclosed · since 20 Nov 2025 · CVE-2025-64660

    AI
  6. closed5.0
    GitHub Copilot CVE-2025-62453: GitHub Copilot and VS Code Generative AI Output Validation Flaw

    Patch now · Disclosed · since 11 Nov 2025 · CVE-2025-62453

    AI