Vulnerability Details CVE-2026-87817
GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersonate the git directory using tracked files like gitdir, commondir, and HEAD. Attackers can execute arbitrary code by placing a malicious pre-commit hook in the tracked hooks directory that executes when a victim calls index.commit() on a cloned or opened repository.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 23.6%
CVSS Severity
CVSS v3 Score 8.8