Vulnerability · Published Aug 1, 2026 · Assigned by VulnCheck

CVE-2026-67323GitPython before 3.1.51 Command Injection via unguarded Git options

High 8.4

In plain English

A high-severity 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 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.4High

Exploit odds (30 days)1.3%top 30.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

GitPython before 3.1.51 fails to guard against dangerous Git options passed as keyword arguments in Repo.archive() and git.ls_remote(), allowing command injection via options such as --exec/--upload-pack (leading to arbitrary command execution). Additionally, Repo.iter_commits() and Repo.blame() do not check for leading-dash revision arguments, so a revision like --output=<path> can cause Git to open and truncate an arbitrary file. Exploitation requires an application that passes attacker-controlled arguments to these methods.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	python-git	3.1.30-1+deb12u3	DEBIAN-CVE-2026-67323
Debian:13	python-git	3.1.44-1+deb13u1	DEBIAN-CVE-2026-67323
Debian:14	python-git	3.1.61-1	DEBIAN-CVE-2026-67323
PyPI	gitpython	3.1.51	GHSA-956x-8gvw-wg5v
PyPI	gitpython	3.1.51	PYSEC-2026-3839
Ubuntu:26.10	python-git	no fix listed	UBUNTU-CVE-2026-67323

Affected products (as reported)

Vendor	Product	Versions
gitpython-developers	GitPython	0 – before 3.1.51

Weakness: CWE-77 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-956x-8gvw-wg5v) vendor-advisory
VulnCheck Advisory: GitPython before 3.1.51 Command Injection via unguarded Git options third-party-advisory