CVE-2026-21518CWE-77

GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability

High · published February 10, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
73.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01461 · 73.4th percentile
Weakness
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-02-10T17:51Z
EPSS history
Timeline
  • 10 FEB 17:51Z
    GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
    cvelistv5