Vulnerability · Published Jun 9, 2026 · Assigned by microsoft
CVE-2026-45482Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability
High 8.4
In plain English
A high-severity path traversal in Microsoft Visual Studio Code CoPilot Chat Extension from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)8.4High
Exploit odds (30 days)0.3%top 71.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Visual Studio Code CoPilot Chat Extension | 0.27.0 – before 1.123.2 |
Weakness: CWE-22 · 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
References
- Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability vendor-advisory, patch