The --export-marks option of git fast-import is exposed also via the in-stream command feature export-marks=... and it allows overwriting arbitrary paths. References: https://kernel.googlesource.com/pub/scm/git/git/+/refs/tags/v2.24.1/Documentation/RelNotes/2.14.6.txt CREATE(Triage):(User=admin) CVE-2019-1348 (https://nvd.nist.gov/vuln/detail/CVE-2019-1348)