High severity · published Aug 19, 2026
CVE-2026-76220
GitPython before 3.1.58 Command Execution via split_single_char_options
8.8
CVSS
0.9%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitPython · gitpython-developers
before 3.1.58 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76220
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76220
vendor-advisory
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wvpp-8hx9-p66j
third-party-advisory
https://www.vulncheck.com/advisories/gitpython-before-command-execution-via-split-single-char-options
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