by Kastro
Paper/Archive/CVE-2026-67324

CVE-2026-67324

gitpython-developers GitPython — GitPython 3.1.50 Authentication Bypass via Joined Short Options

EPSS 0.6%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 50.8.508 × 2010.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
GitPython3.1.50 – < 3.1.513.1.51CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qjwriteupvulncheck.com/advisories/gitpython-authentication-bypass-via-joined-short-options