CVE-2026-65675: CoPilot Chat Security Feature Bypass Vulnerability

Overview

Severity
High (CVSS 7.1)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L/E:U/RL:O/RC:C
Category
Security Feature Bypass
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2026-Aug
Released
2026-08-11
EPSS Score
0.51% (percentile: 40.8%)

Description

No cwe for this issue in Visual Studio Code CoPilot Chat Extension allows an unauthorized attacker to bypass a security feature over a network.

FAQ

How could an attacker exploit this vulnerability? An attacker could exploit this vulnerability by supplying specially crafted content that the AI coding agent processes, causing it to write files outside the workspace folder the user opened. Exploitation requires the user to be operating the agent in an automatic edit-approval mode. Successful exploitation could allow an attacker to create or modify files that the user did not intend the agent to change.

Affected Products (1)

Developer Tools

  • Microsoft Visual Studio Code CoPilot Chat Extension

Security Updates (1)

Acknowledgments

Rayhan Destian, Theodor N. Engoey

Revision History

  • 2026-08-11: Information published.