CVE-2026-73621
Published:August 13, 2026
Updated:August 25, 2026
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).
Affected Packages
gitpython (CONDA):
Affected version(s) >=1.0.1 <3.1.56Fix Suggestion:
Update to version 3.1.56https://github.com/gitpython-developers/GitPython.git (GITHUB):
Affected version(s) >=3.1.0 <3.1.56Fix Suggestion:
Update to version 3.1.56gitpython (PYTHON):
Affected version(s) >=0.1.7 <3.1.56Fix Suggestion:
Update to version 3.1.56Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
EPSS
Base Score:
0.20