CVE-2026-42284
HIGH8.1EPSS 0.02%GitPython: Unsafe option check validates multi_options before shlex.split transformation
Published: 4/25/2026Modified: 5/17/2026
Also known as:DEBIAN-CVE-2026-42284
Description
GitPython is a python library used to interact with Git repositories. Prior to version 3.1.47, _clone() validates multi_options as the original list, then executes shlex.split(" ".join(multi_options)). A string like "--branch main --config core.hooksPath=/x" passes validation (starts with --branch), but after split becomes ["--branch", "main", "--config", "core.hooksPath=/x"]. Git applies the config and executes attacker hooks during clone. This issue has been patched in version 3.1.47.
Affected packages (2)
- Debian/python-gitfrom 0
- PyPI/gitpythonfrom 0, < 3.1.47
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-42284
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-42284
- PATCHhttps://github.com/gitpython-developers/GitPython
- WEBhttps://github.com/gitpython-developers/GitPython/releases/tag/3.1.47
- WEBhttps://github.com/gitpython-developers/GitPython/security/advisories/GHSA-x2qx-6953-8485
- WEBhttps://www.tenable.com/cve/CVE-2026-32686