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.

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Vendors Products
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Visual Studio Code Copilot Chat Extension Subscribe
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 27 Feb 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft visual Studio Code Copilot Chat Extension
CPEs cpe:2.3:a:microsoft:visual_studio_code_copilot_chat_extension:*:*:*:*:*:*:*:*
Vendors & Products Microsoft visual Studio Code Copilot Chat Extension

Thu, 26 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 23 Feb 2026 17:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C'}

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'}


Wed, 11 Feb 2026 21:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:-:*:*

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 and Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
Title GitHub Copilot and Visual Studio Code Security Feature Bypass Vulnerability
First Time appeared Microsoft
Microsoft visual Studio Code
Weaknesses CWE-77
CPEs cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft visual Studio Code
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-02-27T20:09:58.886Z

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

Link: CVE-2026-21518

cve-icon Vulnrichment

Updated: 2026-02-25T15:43:48.047Z

cve-icon NVD

Status : Modified

Published: 2026-02-10T18:16:34.263

Modified: 2026-02-23T17:23:27.390

Link: CVE-2026-21518

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-10T21:33:48Z

Weaknesses