CVE-2026-21518 GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
An attacker can bypass security features in GitHub Copilot and Visual Studio Code via command injection, requiring a patch to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21518?
CVE-2026-21518 is a high-severity vulnerability in Microsoft Visual Studio Code, published on 10 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-77
Which versions are affected by CVE-2026-21518?
It affects 1 product.
Products include Microsoft Visual Studio Code.
How do I fix CVE-2026-21518?
No fix has been published for CVE-2026-21518 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21518 being exploited?
There is no known exploitation of CVE-2026-21518 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Visual Studio Code
- CVE-2026-81376 Visual Studio Code Security Feature Bypass Vulnerability
- CVE-2026-47281 Visual Studio Code Elevation of Privilege Vulnerability
- CVE-2026-78462 Visual Studio Code Security Feature Bypass Vulnerability
- CVE-2026-59113 Visual Studio Code Remote Code Execution Vulnerability
- CVE-2026-69320 Visual Studio Code Remote Code Execution Vulnerability