The host is installed with Xcode before 11.2 on Apple Mac OS X 10.14.4 or later or Git 2.14.x before 2.14.6, 2.15.x before 2.15.4, 2.16.x before 2.16.6, 2.17.x before 2.17.3, 2.18.x before 2.18.2, 2.19.x before 2.19.3, 2.20.x before 2.20.2, 2.21.x before 2.21.1, 2.22.x before 2.22.2, 2.23.x before 2.23.1 or 2.24.x before 2.24.1 and is prone to a security bypass vulnerability. A flaw is present in the application, which fails to properly handle an input validation issue. Successful exploitation allow a remote malicious attacker to bypass security restrictions, caused by a flaw in the --export-marks option of git fast-import.