CVE-2026-67324
Critical
Description
GitPython 3.1.50 fails to recognize joined short-option forms such as -u<value> (the short form of --upload-pack=<value>) 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<helper> to bypass the gate that blocks --upload-pack/-u, causing Git to execute the specified helper command during clone. Fixed in 3.1.51.
SeverityCritical
CVSS9.8
Exploit probability—
ProductGitpython
PublishedAug 1, 2026
First seenAug 1, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- gitpython_project gitpython3.1.50 or later
- gitpython3.1.51 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitpython_project gitpython | v < 3.1.50 | 3.1.50 |
| gitpythonPyPI | 3.1.50 ≤ v < 3.1.51 | 3.1.51 |
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