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.
History

Fri, 14 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Gitpython Project
Gitpython Project gitpython
CPEs cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*
Vendors & Products Gitpython Project
Gitpython Project gitpython

Tue, 04 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Critical


Mon, 03 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 02 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Gitpython-developers
Gitpython-developers gitpython
Vendors & Products Gitpython-developers
Gitpython-developers gitpython

Sat, 01 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title GitPython 3.1.50 Authentication Bypass via Joined Short Options
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-08-01T12:22:18.154Z

Updated: 2026-08-14T16:50:52.758Z

Reserved: 2026-07-29T13:07:21.184Z

Link: CVE-2026-67324

cve-icon Vulnrichment

Updated: 2026-08-03T18:25:55.041Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-01T13:17:02.770

Modified: 2026-09-03T16:11:02.480

Link: CVE-2026-67324

cve-icon Redhat

Severity : Critical

Publid Date: 2026-08-01T12:22:18Z

Links: CVE-2026-67324 - Bugzilla