Vulnerability in Gitpython-Developers Gitpython
CVE-2026-76220
GitPython before 3.1.58 contains a command execution vulnerability in the check_unsafe_options guard that can be bypassed by combining a single-character kwarg with split_single_char_options=False. Attackers can supply a crafted kwargs dictionary to guarded methods like clone_from to emit a joined token parsed as --upload-pack, enabling arbitrary OS command execution at default allow_unsafe_options=False.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/gitpython-developers/GitPython/security/advisories/GHSA-wvpp-8hx9-p6… (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/gitpython-before-command-execution-via-split-singl… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-76220?
- CVE-2026-76220 is a high-severity vulnerability in Gitpython-Developers Gitpython, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-08-19.
- How severe is CVE-2026-76220?
- High severity. CVSS v3 base score is 8.8 out of 10.