---
id: GHSA-m4f3-g4cq-hqrx
title: >-
  Duplicate Advisory: GitPython: Environment-variable exfiltration via
  os.path.expandvars() on Repo.clone_from() URL
summary: >-
  Duplicate Advisory: GitPython: Environment-variable exfiltration via
  os.path.expandvars() on Repo.clone_from() URL
severity: high
cvss: 7.5
cwe:
  - CWE-200
vendor: gitpython
product: gitpython
ecosystem: pip
affected:
  - gitpython <= 3.1.51
published: '2026-08-01'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T15:34:15Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-m4f3-g4cq-hqrx'
references:
  - url: >-
      https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-rwj8-pgh3-r573
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67322'
  - url: >-
      https://www.vulncheck.com/advisories/gitpython-before-environment-variable-exfiltration-via-clone-from
  - url: 'https://github.com/advisories/GHSA-m4f3-g4cq-hqrx'
tags:
  - ghsa
  - pip
ingestedAt: '2026-09-08T16:34:19.230Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-rwj8-pgh3-r573. This link is maintained to preserve external references.

## Original Description

GitPython before 3.1.52 is vulnerable to environment-variable exfiltration in Repo.clone_from(). The caller-supplied remote URL is passed through Git.polish_url(), which on non-Cygwin platforms calls os.path.expandvars() on the URL before invoking git clone. An attacker who controls the clone URL can embed $NAME or ${NAME} tokens that are expanded to the values of the hosting process's environment variables (e.g., AWS_SECRET_ACCESS_KEY or GITHUB_TOKEN). The resulting URL, now containing the secret, is transmitted over the network to an attacker-controlled host during the clone attempt, disclosing the secret.

## Affected packages

- `gitpython <= 3.1.51`

## Remediation

Refer to the advisory for the patched release.