CVE-2026-67324

critical · 9.3

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.

9.3

CVSS

0.4%

EPSS (exploit prob.)

32nd

EPSS percentile

2026-08-01

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-78

Affected products

Vendor	Product	Affected versions
gitpython_project	gitpython	< 3.1.50

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-67324