# CVE-2026-67324: GitPython unsafe option gate bypass through joined short options

Source: https://junglewise.ai/threats/cve-2026-67324-gitpython-unsafe-option-gate-bypass-through-joined-short-options  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-01. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-67324 · Severity: critical · CVSS 9.8 · Published 2026-08-01

GitPython is a Python library used by applications to interact with Git repositories, including cloning and pulling code. Version 3.1.50 has a flaw in its security controls that is meant to block dangerous Git clone options—an attacker who controls clone parameters can bypass this protection by using an alternate syntax for the --upload-pack option, allowing arbitrary command execution during repository cloning.

Technologies: [Gitpython Project Gitpython](https://junglewise.ai/threats/technologies/gitpython), [gitpython (PyPI)](https://junglewise.ai/threats/technologies/pypi-gitpython). Vendors: [Gitpython Project](https://junglewise.ai/threats/vendors/gitpython-project), [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2026-67324 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-67324 being exploited in the wild.

**How severe is CVE-2026-67324?** Critical severity, with a CVSS score of 9.8, published 1 August 2026.

**Which products and versions are affected?** gitpython (PyPI) ECOSYSTEM:introduced=3.1.50,fixed=3.1.51.

**Is there a fix for CVE-2026-67324?** Yes. gitpython (PyPI): upgrade to 3.1.51 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-67324 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-67324?** Check whether you run Gitpython Project Gitpython or gitpython (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- gitpython (PyPI): upgrade to 3.1.51 or later

  ```sh
  pip install "gitpython>=3.1.51"
  ```


## Technical details

GitPython 3.1.50 implements a gate to block unsafe Git clone options (--upload-pack, -u, --config, -c) when allow_unsafe_options=False. The vulnerability is an OS command injection (CWE-78) in the option validation logic: the _canonicalize_option_name() function fails to recognize joined short-option forms such as -u<value> (Git's short form of --upload-pack=<value>). When Repo.clone_from(..., multi_options=["-u<helper>"], allow_unsafe_options=False) is called, the validator incorrectly canonicalizes -u<value> to "u<value>" instead of "u", causing it to bypass the blocked option check. Git then accepts the joined short option and executes the helper command. Attack vector is network (attacker controls multi_options passed to clone_from). The fix is available in GitPython 3.1.51.

## Affected products

- GitPython GitPython 3.1.50

## Identifiers

- CVE-2026-67324
- GHSA-v396-v7q4-x2qj
- PYSEC-2026-3947

## Timeline

- 2026-07-12: disclosed: GitHub security advisory GHSA-v396-v7q4-x2qj published
- 2026-08-01: advisory: CVE-2026-67324 published
- 2026-08-01: patched: Fix released in GitPython 3.1.51

## References

- [https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qj](https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qj)
- [https://www.vulncheck.com/advisories/gitpython-authentication-bypass-via-joined-short-options](https://www.vulncheck.com/advisories/gitpython-authentication-bypass-via-joined-short-options)

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