GitHub Copilot CLI brings AI-powered coding assistance directly to your command line. Prior to 1.0.43, a security vulnerability has been identified in GitHub Copilot CLI where a malicious bare git repository nested inside a project directory can achieve arbitrary code execution when the agent performs git operations. By exploiting git's automatic bare repository discovery during directory traversal, an attacker can set core.fsmonitor or other executable config keys to run arbitrary commands without user awareness or approval. The vulnerability arises because git's core.fsmonitor config key (and 15+ similar keys such as core.hookspath, diff.external, merge.tool, etc.) can specify arbitrary shell commands that git will execute as part of normal operations like status, diff, or rev-parse. This vulnerability is fixed in 1.0.43.
References
| Link | Resource |
|---|---|
| https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf | Exploit Mitigation Vendor Advisory |
| https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf | Exploit Mitigation Vendor Advisory |
Configurations
History
02 Jun 2026, 13:58
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf - Exploit, Mitigation, Vendor Advisory | |
| CPE | cpe:2.3:a:github:copilot-cli:*:*:*:*:*:*:*:* | |
| First Time |
Github copilot-cli
Github |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
13 May 2026, 19:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/github/copilot-cli/security/advisories/GHSA-9ccr-r5hg-74gf - |
13 May 2026, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-13 16:17
Updated : 2026-06-02 13:58
NVD link : CVE-2026-45033
Mitre link : CVE-2026-45033
CVE.ORG link : CVE-2026-45033
JSON object : View
Products Affected
github
- copilot-cli
CWE
CWE-696
Incorrect Behavior Order