---
id: CVE-2026-45482
title: >-
  Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass
  Vulnerability
summary: >-
  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.
severity: high
cvss: 8.4
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-22
vendor: Microsoft
product: Microsoft Visual Studio Code CoPilot Chat Extension
affected:
  - visual_studio_code_copilot_chat_extension >= 0.27.0 < 1.123.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-06-10T03:57:00.449616Z'
published: '2026-06-09'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T13:44:24.304Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-45482'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45482'
    label: >-
      Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass
      Vulnerability
tags:
  - cve.org
epss: 0.00345
epssPercentile: 0.2811
ingestedAt: '2026-09-24T14:44:21.399Z'
---

## Overview

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.

## Affected

- `visual_studio_code_copilot_chat_extension >= 0.27.0 < 1.123.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.