Code Injection in GitPython - CVE-2026-78676

Vulnerability identifier: #VU145793

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-78676

CWE-ID: CWE-94

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to code injection in GitConfigParser._write()/write_section() in git/config.py when re-serializing previously parsed multi-line git-config values during an unrelated config write. A remote attacker can supply a crafted config value that is rewritten into a live injected directive such as core.hooksPath to execute arbitrary code.

Exploitation requires an attacker-influenced config file to be opened read-write and later flushed through any legitimate write operation. The injected directive becomes active on a subsequent hook-firing git operation.

GitPython
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Desktop 15
Python 3 Module
openSUSE Leap
openEuler
python311-GitPython
python-GitPython
python-GitPython-help
python3-GitPython

Install security update from vendor's website.

GitPython - update to 3.1.59
python311-GitPython - update to 3.1.34.1693646983.2a2ae77-150400.9.8.1
python-GitPython - update to 3.1.59-1
python-GitPython-help - update to 3.1.59-1
python3-GitPython - update to 3.1.59-1

• https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-284h-m62q-gf8w

• Multiple vulnerabilities in GitPython
• openEuler 24.03 LTS SP3 update for python-GitPython
• openEuler 24.03 LTS SP1 update for python-GitPython
• SUSE update for python-GitPython