Improper Neutralization of Argument Delimiters in a Command in GitPython - #VU139091
Published: July 22, 2026
Vulnerability identifier: #VU139091
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: gitpython-developers
Affected software:
GitPython
GitPython
Detailed vulnerability description
The vulnerability allows a remote user to overwrite arbitrary files.
The vulnerability exists due to improper neutralization of argument delimiters in a command in Diffable.diff when forwarding user-controlled arguments to git diff or git diff-tree. A remote user can supply a crafted output argument or a crafted other value to overwrite arbitrary files.
The issue affects both key-controlled and value-controlled input paths because the caller-supplied other reference is inserted before the -- separator and can be parsed as a git option.
Remediation
Install security update from vendor's website.