CVE-2026-73620: Gitpython Project Gitpython

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

GitPython before 3.1.57 fails to guard git option forwarding in IndexFile.checkout() and TagReference.create(), allowing attackers to pass unsafe options via kwargs. Attackers can use --prefix to overwrite arbitrary files with repository content or -F to read arbitrary files returned in-band.

Affected products

• Gitpython Project Gitpython: before 3.1.57 (fixed in 3.1.57)

Published 2026-08-13. Last modified 2026-09-03.