What’s Vulnerable › Vulnerabilities

CVE-2026-42284: GitPython: Unsafe option check validates multi_options before shlex.split transforms it

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-05-07 · updated 2026-06-17
• Weakness: CWE-88

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 products

• gitpython-developers GitPython: before 3.1.47 — fixed in 3.1.47

How to fix

Upgrade to a fixed version: gitpython-developers GitPython 3.1.47. Check the vendor advisory for mitigations.

References

• https://github.com/gitpython-developers/GitPython/releases/tag/3.1.47
• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-x2qx-6953-8485
• https://www.tenable.com/cve/CVE-2026-32686

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