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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft GitHub Copilot Plugin for JetBrains IDEs affected
Version Status Constraints
1.0.0 affected < 1.5.63

No data.

No data.

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Vendors Products
Microsoft Subscribe
Gihub Copilot Plugin For Jetbrains Ides Subscribe

Project Subscriptions

Vendors Products
Microsoft Subscribe
Gihub Copilot Plugin For Jetbrains Ides Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21516 cve-icon cve-icon
History

Tue, 10 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Description Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an unauthorized attacker to execute code over a network.
Title GitHub Copilot for Jetbrains Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft gihub Copilot Plugin For Jetbrains Ides
Weaknesses CWE-77
CPEs cpe:2.3:a:microsoft:gihub_copilot_plugin_for_jetbrains_ides:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft gihub Copilot Plugin For Jetbrains Ides
References
Metrics cvssV3_1

{'score': 8.8, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-02-11T01:15:01.095Z

Reserved: 2025-12-30T18:10:54.845Z

Link: CVE-2026-21516

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-10T18:16:33.960

Modified: 2026-02-10T21:51:48.077

Link: CVE-2026-21516

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T21:33:43Z

Weaknesses