Improper Neutralization of Special Elements in Output Used by a Downstream Component in GitPython - #VU139089
Published: July 22, 2026
Vulnerability identifier: #VU139089
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-74
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 attacker to execute arbitrary code.
The vulnerability exists due to improper neutralization of special elements in git config section names in the GitPython config writer when writing attacker-controlled submodule names into the parent repository's .git/config. A remote attacker can supply a specially crafted submodule name to inject arbitrary config directives and execute arbitrary code.
User interaction is required for the victim to perform a subsequent git operation that uses the injected configuration, and the issue is reachable via untrusted .gitmodules data during submodule initialization or via applications that create submodules from untrusted input.
Remediation
Install security update from vendor's website.