Arbitrary Argument Injection Affecting python-git package, versions <3.0.7-1ubuntu0.1~esm4


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.57% (43rd percentile)

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  • Snyk IDSNYK-UBUNTU2004-PYTHONGIT-16337953
  • published23 May 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

CVE-2026-42284  (opens in a new tab)
CWE-88  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 python-git to version 3.0.7-1ubuntu0.1~esm4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-git package and not the python-git package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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 Base Scores

version 3.1