Feb 2026: GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
CVE-2026-21518 Published on February 10, 2026
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.
Weakness Type
What is a Command Injection Vulnerability?
The software 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.
CVE-2026-21518 has been classified to as a Command Injection vulnerability or weakness.
Products Associated with CVE-2026-21518
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-21518 are published in Microsoft Visual Studio Code:
Affected Versions
Microsoft Visual Studio Code:- Version 1.0.0 and below 1.109.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.