VulnerabilityModified

CVE-2026-42284

Prior to version 3.1.47, _clone() validates multi_options as the original list, then executes shlex.split(" ".join(multi_options)).

CRITICAL 9.8EPSS 0.57%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.57% probability · 45th percentile
CISA KEV: Not listed
Weakness: CWE-88
Affected: gitpython project/gitpython
Source: security-advisories@github.com

References

https://github.com/gitpython-developers/GitPython/releases/tag/3.1.47Patch, Release Notes
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-x2qx-6953-8485Exploit, Vendor Advisory
https://www.tenable.com/cve/CVE-2026-32686

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.