CVE-2026-45482

Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability

Published Jun 9, 2026 CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed
Description
Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description Initialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network. Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
Type Values Removed Values Added
Description Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally. Initialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network.
Type Values Removed Values Added
Title Microsoft Visual Studio Code CoPilot Chat Extension Security Feature Bypass Vulnerability Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Improper limitation of a pathname to a restricted directory ('path traversal') in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.
Title Microsoft Visual Studio Code CoPilot Chat Extension Security Feature Bypass Vulnerability
First Time appeared Microsoft
Microsoft visual Studio Code Copilot Chat Extension
Weaknesses CWE-22
CPEs cpe:2.3:a:microsoft:visual_studio_code_copilot_chat_extension:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft visual Studio Code Copilot Chat Extension
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 11:24 PM
Reserved
May 12, 2026, 4:07 PM
Status
Modified
Published
Jun 9, 2026, 5:17 PM
Modified
Jul 23, 2026, 8:10 AM