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GitPython CVE-2026-42284

| EUVDEUVD-2026-28412 HIGH
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (CWE-88)
2026-05-07 GitHub_M GHSA-x2qx-6953-8485
Python Information Disclosure Red Hat Suse Gitpython Gitpython Developers
8.1
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SUSE
HIGH
qualitative
Red Hat
7.5 HIGH
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch available
May 07, 2026 - 20:02 EUVD
Source Code Evidence Fetched
May 07, 2026 - 19:47 vuln.today
Analysis Generated
May 07, 2026 - 19:47 vuln.today
CVE Published
May 07, 2026 - 18:19 nvd
HIGH 8.1

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 14 pypi packages depend on gitpython (13 direct, 1 indirect)

Ecosystem-wide dependent count for version 3.1.47.

DescriptionGitHub Advisory

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.

AnalysisAI

Remote code execution in GitPython < 3.1.47 allows unauthenticated network attackers to inject malicious Git configuration during repository clone operations via crafted multi_options arguments. The _clone() method validates options before shlex.split transformation, enabling attackers to bypass unsafe option checks by embedding commands like '--config core.hooksPath=/attacker/path' within '--branch' strings. Git then executes attacker-controlled hooks during clone. Vendor-released patch available in version 3.1.47. CVSS 8.1 with high attack complexity; no EPSS or KEV data available, but public exploit code exists per GitHub security advisory GHSA-x2qx-6953-8485.

Technical ContextAI

GitPython is a Python library for programmatic interaction with Git repositories (cpe:2.3:a:gitpython-developers:gitpython). The vulnerability stems from CWE-88 (Improper Neutralization of Argument Delimiters) in the _clone() function at git/repo/base.py. The code path performs security validation on the original multi_options list, then transforms it via shlex.split(" ".join(multi_options)), and finally passes the transformed result to git clone. The validation uses startswith() checks against unsafe_git_clone_options, which cannot detect dangerous options embedded within quoted strings. For example, '--branch main --config core.hooksPath=/x' passes validation as a single string starting with '--branch', but shlex.split converts it to separate tokens ['--branch', 'main', '--config', 'core.hooksPath=/x'], allowing the --config directive to reach Git's command line. Git then applies the configuration and executes hooks from the attacker-controlled path during clone operations. The same logic flaw affects Submodule.update() via clone_multi_options parameter.

RemediationAI

Upgrade GitPython to version 3.1.47 or later immediately (pip install --upgrade GitPython==3.1.47). This version fixes the validation logic to check options after shlex.split transformation. Release notes confirm the patch at https://github.com/gitpython-developers/GitPython/releases/tag/3.1.47. If immediate upgrade is not possible, implement strict input validation to reject any multi_options strings containing whitespace or shell metacharacters - however, this workaround is complex due to legitimate use cases for quoted arguments, so upgrading is strongly preferred. Do not accept multi_options or clone_multi_options values from untrusted sources; if repository clone configuration must be user-configurable, use an allowlist of specific options (e.g., only permit '--branch <value>' with value validated against a known branch list). Note that blocking --config alone is insufficient due to other potentially dangerous options like --upload-pack. For defense-in-depth, run GitPython operations in sandboxed environments with no write access to system directories and with disabled hooks execution via Git's core.hooksPath set to /dev/null, though this mitigation may break legitimate hook-dependent workflows.

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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Affected
SUSE Linux Enterprise Module for Python 3 15 SP7 Affected

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CVE-2026-42284 vulnerability details – vuln.today
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