CVE-2026-45482

HIGH

Microsoft Visual Studio Code CoPilot Chat Extension Security Feature Bypass Vulnerability

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Microsoft Visual Studio Code CoPilot Chat Extension Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45482

Scores

CVSS v3 8.4
EPSS 0.0029
EPSS Percentile 21.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-22
Status published
Products (2)
Microsoft/Microsoft Visual Studio Code CoPilot Chat Extension 0.27.0 - 1.123.1
Microsoft/Microsoft Visual Studio Code CoPilot Chat Extension 0.27.0 - 1.123.2
Published Jun 09, 2026
Tracked Since Jun 09, 2026