Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck

CVE-2026-73623GitPython before 3.1.54 Remote Code Execution via --template

High 7.5

In plain English

A high-severity OS command injection in GitPython from gitpython-developers. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.0%top 38.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	python-git	3.1.30-1+deb12u3	DEBIAN-CVE-2026-73623
Debian:13	python-git	3.1.44-1+deb13u1	DEBIAN-CVE-2026-73623
Debian:14	python-git	3.1.61-1	DEBIAN-CVE-2026-73623
PyPI	gitpython	3.1.54	GHSA-6p8h-3wgx-97gf
PyPI	gitpython	3.1.54	PYSEC-2026-3952
Ubuntu:26.10	python-git	no fix listed	UBUNTU-CVE-2026-73623

Affected products (as reported)

Vendor	Product	Versions
gitpython-developers	GitPython	0 – before 3.1.54

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-6p8h-3wgx-97gf) vendor-advisory
VulnCheck Advisory: GitPython before 3.1.54 Remote Code Execution via --template third-party-advisory