CVE-2026-42284
GitPython: Unsafe option check validates multi_options before shlex.split transformation
8.1
HIGH
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2026-42284
To remediate CVE-2026-42284, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 3.1.47 or later
Is CVE-2026-42284 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 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 |