---
id: CVE-2026-67326
title: >-
  GitPython before 3.1.50 fails to validate newline characters in the section
  parameter of config_writer(), allowing attackers to inject arbitrary section
  headers into .git/config
summary: >-
  GitPython before 3.1.50 fails to validate newline characters in the section
  parameter of config_writer(), allowing attackers to inject arbitrary section
  headers into .git/config. Attackers can inject newlines to create a forged
  [core] se…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-20
  - CWE-93
vendor: gitpython_project
product: gitpython
affected:
  - gitpython < 3.1.50
patched:
  - gitpython 3.1.50
published: '2026-08-01'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:45:28.520'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67326'
references:
  - url: >-
      https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/gitpython-before-newline-injection-via-config-writer-section
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-mv93-w799-cj2w
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-rpm5-65cw-6hj4'
  - url: 'https://github.com/gitpython-developers/GitPython'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-67326.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-67326'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2510003'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-67326'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67326'
  - url: 'https://access.redhat.com/errata/RHSA-2026:44416'
  - url: 'https://access.redhat.com/errata/RHSA-2026:45940'
  - url: 'https://access.redhat.com/errata/RHSA-2026:45785'
tags:
  - nvd
  - osv
  - pip
  - csaf
  - vex
  - red-hat
epss: 0.00254
epssPercentile: 0.15214
aliases:
  - GHSA-mv93-w799-cj2w
  - PYSEC-2026-3980
ecosystem: pip
ingestedAt: '2026-08-02T07:18:02.274Z'
---

## Overview

GitPython before 3.1.50 fails to validate newline characters in the section parameter of config_writer(), allowing attackers to inject arbitrary section headers into .git/config. Attackers can inject newlines to create a forged [core] section with hooksPath pointing to attacker-controlled directories, achieving remote code execution when git hooks are triggered.

## Affected

- `gitpython < 3.1.50`

## Remediation

Upgrade past the affected range:

- `gitpython 3.1.50`

## Package advisory (CVE-2026-67326)

Affected packages:

- `gitpython < 3.1.50`

Patched in:

- `gitpython 3.1.50`

Source: https://osv.dev/vulnerability/GHSA-mv93-w799-cj2w

## Vendor advisories

- **RHSA-2026:44416** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-07-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:44416)
- **RHSA-2026:45940** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-07-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:45940)
- **RHSA-2026:45785** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-07-25 · [advisory](https://access.redhat.com/errata/RHSA-2026:45785)