GitPython before 3.1.56 contains an argument injection vulnerability in the Commit.count() method, which forwards keyword arguments to 'git rev-list' without the check_unsafe_options guard present in the sibling iter_items method. An attacker who can control options passed to Commit.count (e.g., via an application that forwards a user-supplied options dict) can supply output=<path>, causing 'git rev-list --output=<path>' to open and truncate the target file to zero bytes before revision parsing. This allows destruction/blanking of an arbitrary file at the process's privilege level (no content control, 0-byte truncation).
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-p538-c434-8v24 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · gitpython_projectNVD modified 2026-10-23 18:10
Affected (CPE criteria) 1
cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*