GHSA-v396-v7q4-x2qj: gitpython (CVE-2026-67324)

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 a...

CVSS 9.3 CriticalCriticalEPSS 0.0045 · 39th percentile

Critical, because:

CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 1 Aug 2026, 13:17 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
gitpython	PyPI	>=3.1.50, <3.1.51	3.1.51

Identifiers

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

Weakness (CWE)

CWE-78

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GitPython versions >=3.1.50 and <3.1.51 are affected. When an application passes attacker-influenced clone options to Repo.clone_from with allow_unsafe_options=False, an attacker can supply a joined short option such as -u followed by a helper command, bypassing the gate that blocks --upload-pack and causing Git to run that helper during clone. Upgrade gitpython to version 3.1.51 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.3	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0045, the 39th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:10 UTC First seen by agentprime
31 Oct 2026, 14:10 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.