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High MSRC-CVE-2026-21516 1 CVE

GitHub Copilot for Jetbrains Remote Code Execution Vulnerability

Published Feb 10, 2026 · Updated Feb 10, 2026

Vendor: Microsoft

Summary

Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?
The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

Security updates
1.5.63 — https://plugins.jetbrains.com/plugin/17718-github-copilot--your-ai-pair-programmer/versions/stable/933548

Vulnerabilities 1

  • High 8.8
    CVE-2026-21516

    GitHub Copilot for Jetbrains Remote Code Execution Vulnerability

    Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an unauthorized attacker to execute code over a network.

    Microsoft GitHub Copilot Plugin for JetBrains IDEs

Revision history

  1. #1

    Information published.

References