CVE-2026-45482ImportantRevised 10 Jun
Microsoft Visual Studio Code CoPilot Chat Security Feature Bypass Vulnerability
Assessment
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
- Important
- CVSS base score
- 8.4CVSS:3.1/
AV:L/ AC:L/ PR:N/ UI:N/ S:U/ C:H/ I:H/ A:H/ E:U/ RL:O/ RC:C - Impact
- Security Feature Bypass
- EPSS, next 30 days
- 0.4%Higher than 32.7% of scored CVEs · FIRST model run 29 Sep 2026 · about EPSS
- Public exploit code
- No Nuclei template lists it
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- GitHub Copilot and Visual Studio Code
- Weakness
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Issued by
- Microsoft
- Published
- 9 Jun 2026 · June 2026
- Last revised
- 10 Jun 2026Updated the Security Updates build number and title as the Chat extension is now merged into Visual Studio Code. This is an informational change only.
Updates that fix it
0 KBsNo KB listed
MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.
Affected products
Developer Tools1 affected product
- Microsoft Visual Studio Code CoPilot Chat Extension