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CVE-2026-73623 Details

Description

GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, allowing attackers to achieve arbitrary command execution during clone operations. Attackers can supply --template pointing to a directory containing malicious post-checkout hooks that execute when git clones the repository.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf	CISA-ADP	ExploitVendor Advisory
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf	[email protected]	ExploitVendor Advisory
https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-template	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	[email protected]

Affected Products

Product	Versions
gitpython project gitpython	< 3.1.54
CPE cpe:2.3:a:gitpython_project:gitpython::::::python::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 3, 2026	Initial Analysis	[email protected]
Aug 15, 2026	CVE Modified	CISA-ADP
Aug 13, 2026	New CVE Received	[email protected]