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.

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.

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.

Affected products

Gitpython-developers Gitpython

Weakness classification (CWE)

CWE-88 — Argument Injection

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (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.