GHSA-m4f3-g4cq-hqrx: Duplicate Advisory GitPython: Environment-variable Exfiltration Vulnerability

HIGH
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CVSS 7.5
CWE-200
Published
Advisory Summary

GHSA-m4f3-g4cq-hqrx is a HIGH (CVSS 7.5) gitpython: environment-variable exfiltration vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Duplicate Advisory libraries in the PyPI ecosystem. The issue involves gitpython: environment-variable exfiltration via os.path.expandvars() on repo.clone_from() url. Remediation is available in the latest vendor maintenance releases.

GHSA-m4f3-g4cq-hqrx at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-m4f3-g4cq-hqrx
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Duplicate Advisory
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix GHSA-m4f3-g4cq-hqrx

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

gitpython fixed: Latest secure release 
pip install gitpython>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show gitpython

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-m4f3-g4cq-hqrx, inspect your installed packages using pip:

pip show gitpython

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show gitpython command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## 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.

GHSA-m4f3-g4cq-hqrx Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
gitpython
pypi/gitpython
PyPI
≤ 3.1.51

References

GitHub Advisory / Wiki ADVISORY
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-rwj8-pgh3-r573
NVD — GHSA-m4f3-g4cq-hqrx NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-67322
www.vulncheck.com/advisories/gitpytho... WEB
https://www.vulncheck.com/advisories/gitpython-before-environment-variable-exfiltration-via-clone-from

Frequently Asked Questions

What is GHSA-m4f3-g4cq-hqrx?
GHSA-m4f3-g4cq-hqrx is a security vulnerability in Duplicate Advisory involving GitPython: Environment-variable exfiltration via os.path.expandvars() on Repo.clone_from() URL under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: gitpython.
What version fixes GHSA-m4f3-g4cq-hqrx?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is gitpython affected?
Yes, gitpython is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-m4f3-g4cq-hqrx?
GHSA-m4f3-g4cq-hqrx has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with GHSA-m4f3-g4cq-hqrx?
GHSA-m4f3-g4cq-hqrx is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check PyPI dependencies for GHSA-m4f3-g4cq-hqrx?
Run the dependency tree command: 'pip show gitpython'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-m4f3-g4cq-hqrx",
  "modified" : "2026-09-08T15:34:11Z",
  "published" : "2026-08-01T15:30:28Z",
  "withdrawn" : "2026-09-08T15:34:11Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: GitPython: Environment-variable exfiltration via os.path.expandvars() on Repo.clone_from() URL",
  "details" : "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-rwj8-pgh3-r573. This link is maintained to preserve external references.\n\n## Original Description\n\nGitPython 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "gitpython"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.1.51"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-rwj8-pgh3-r573"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-67322"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/gitpython-before-environment-variable-exfiltration-via-clone-from"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-08T15:34:11Z",
    "nvd_published_at" : "2026-08-01T13:17:02Z"
  }
}