CVE-2025-62449
📋 TL;DR
This path traversal vulnerability in Visual Studio Code CoPilot Chat Extension allows an authorized local attacker to access files outside the intended restricted directory. It affects users who have the CoPilot Chat Extension installed in Visual Studio Code. The attacker must already have local access to the system.
💻 Affected Systems
- Visual Studio Code CoPilot Chat Extension
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker could read sensitive system files, configuration files, or user data stored outside the extension's intended directory, potentially leading to credential theft or further system compromise.
Likely Case
Local user with malicious intent could access other user's files or system configuration files within the same machine, violating file access boundaries.
If Mitigated
With proper file permissions and user access controls, impact is limited to files the user already has permission to access.
🎯 Exploit Status
Exploitation requires local access and authorized use of the extension. Path traversal vulnerabilities are typically straightforward to exploit once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Response Center for specific patched version
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62449
Restart Required: Yes
Instructions:
1. Open Visual Studio Code. 2. Go to Extensions view (Ctrl+Shift+X). 3. Find 'GitHub Copilot Chat' extension. 4. Click Update if available. 5. Restart Visual Studio Code after update.
🔧 Temporary Workarounds
Disable CoPilot Chat Extension
allTemporarily disable the vulnerable extension until patched
code --disable-extension GitHub.copilot-chat
Remove CoPilot Chat Extension
allUninstall the extension completely
code --uninstall-extension GitHub.copilot-chat
🧯 If You Can't Patch
- Restrict user permissions to limit file access scope
- Implement strict file system monitoring for unusual access patterns
🔍 How to Verify
Check if Vulnerable:
Check extension version in VS Code Extensions view for GitHub Copilot ChatCheck Version:
code --list-extensions --show-versions | findstr copilot-chatVerify Fix Applied:
Verify extension version is updated to patched version in Extensions view📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns from VS Code process
- Access to files outside user's typical workspace
Network Indicators:
- None - this is a local file system vulnerability
SIEM Query:
Process: 'code.exe' AND FileAccess: '..\\' OR '../' patterns in accessed paths