Vulnerability · Published Aug 13, 2026 · Assigned by VulnCheck

CVE-2026-73624GitPython before 3.1.54 Arbitrary File Overwrite via diff

High 8.1

In plain English

A high-severity argument 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 0.6% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.6%top 53.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

GitPython versions before 3.1.54 contain an arbitrary file overwrite vulnerability in the Diffable.diff method that fails to validate git options passed through kwargs. Attackers can supply the --output argument via the other parameter or output kwarg to write patch content to attacker-chosen file paths at process privilege level.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	python-git	3.1.30-1+deb12u3	DEBIAN-CVE-2026-73624
Debian:13	python-git	3.1.44-1+deb13u1	DEBIAN-CVE-2026-73624
Debian:14	python-git	3.1.61-1	DEBIAN-CVE-2026-73624
PyPI	gitpython	3.1.54	GHSA-fjr4-x663-mwxc
PyPI	gitpython	3.1.54	PYSEC-2026-3995
Ubuntu:26.10	python-git	no fix listed	UBUNTU-CVE-2026-73624

Affected products (as reported)

Vendor	Product	Versions
gitpython-developers	GitPython	0 – before 3.1.54

Weakness: CWE-88 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References

GitHub Security Advisory (GHSA-fjr4-x663-mwxc) vendor-advisory
VulnCheck Advisory: GitPython before 3.1.54 Arbitrary File Overwrite via diff third-party-advisory