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.

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CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0002

Probability of exploitation

0.06%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-88 CWE-88

Affected Products

Vendor	Product	Versions
gitpython_project	gitpython	< 3.1.47

References

Advisories & Patches

https://github.com/gitpython-developers/GitPython/releases/tag/3.1.47 https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-x2qx-6953-8485

Exploits

https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-x2qx-6953-8485

Other References

https://www.tenable.com/cve/CVE-2026-32686

Frequently Asked Questions

What is CVE-2026-42284? +

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. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-42284? +

CVE-2026-42284 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0002, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-42284? +

CVE-2026-42284 affects products from gitpython_project, specifically: gitpython. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-42284? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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