Fluid Attacks Database

Description

GitPython 3.1.50 fails to recognize joined short-option forms such as -u (the short form of --upload-pack=) when enforcing its default unsafe-option gate. When an application passes attacker-influenced clone options into Repo.clone_from(..., multi_options=..., allow_unsafe_options=False), an attacker can supply -u to bypass the gate that blocks --upload-pack/-u, causing Git to execute the specified helper command during clone. Fixed in 3.1.51.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 12	python-git	=3.1.30-1 \|\| =3.1.30-1+deb12u2 \|\| =3.1.36-1 \|\| =3.1.37-1 \|\| =3.1.37-2 \|\| =3.1.37-3 \|\| =3.1.44-1 \|\| =3.1.45-1 \|\| =3.1.46-1 \|\| =3.1.50-1	-
debian 13	python-git	=3.1.44-1 \|\| =3.1.45-1 \|\| =3.1.46-1 \|\| =3.1.50-1	-
debian 14	python-git	=3.1.44-1 \|\| =3.1.45-1 \|\| =3.1.46-1 \|\| =3.1.50-1	-
debian 11	python-git	=3.1.14-1 \|\| =3.1.14-1+deb11u1 \|\| =3.1.23-1 \|\| =3.1.24-1 \|\| =3.1.27-1 \|\| =3.1.30-1 \|\| =3.1.36-1 \|\| =3.1.37-1 \|\| =3.1.37-2 \|\| =3.1.37-3 \|\| =3.1.44-1 \|\| =3.1.45-1 \|\| =3.1.46-1 \|\| =3.1.50-1	-
pypi	gitpython	=3.1.50 \|\| >=3.1.50 <3.1.51	3.1.51

Aliases

1. CVE-2026-673242. NVD-2026-673243. OSV-DEBIAN-2026-673244. OSV-2026-673245. OSV-GHSA-v396-v7q4-x2qj6. GHSA-v396-v7q4-x2qj7. GCVE-2026-673248. SECURITY-TRACKER-CVE-2026-67324

References

1. https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qj2. https://github.com/gitpython-developers/GitPython/pull/21623. https://github.com/gitpython-developers/GitPython/releases/tag/3.1.51

Does your application use this vulnerable software?

During the free trial, our tools assess your application, identify vulnerabilities, and provide recommendations for their remediation.