CVE-2026-78677
GitPython before 3.1.59 Path Traversal via separate-git-dir
Description
GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create arbitrary git directories outside the intended clone destination. Attackers can pass a separate_git_dir parameter to Repo.clone_from() or Repo.clone() to redirect repository metadata to an attacker-controlled filesystem path, enabling arbitrary directory creation and potential hook execution.
INFO
Published Date :
Aug. 25, 2026, 2:16 a.m.
Last Modified :
Sept. 2, 2026, 7:12 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update GitPython to version 3.1.59 or later.
- Validate clone destinations to prevent arbitrary path manipulation.
- Review Git configuration for insecure options.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-78677.
| URL | Resource |
|---|---|
| https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc | Exploit Vendor Advisory |
| https://www.vulncheck.com/advisories/gitpython-before-path-traversal-via-separate-git-dir | Third Party Advisory |
| https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-78677 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-78677
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-78677 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-78677 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 02, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:* versions up to (excluding) 3.1.59 Added Reference Type VulnCheck: https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc Types: Exploit, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/gitpython-before-path-traversal-via-separate-git-dir Types: Third Party Advisory Added Reference Type CISA-ADP: https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Added Reference https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc Added SSVC {'id': 'CVE-2026-78677', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-25T15:24:35.538595Z'} -
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'gitpython-developers', 'product': 'GitPython', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.1.59', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '3.1.59', 'versionType': 'semver'}], 'packageURL': 'pkg:pypi/GitPython', 'defaultStatus': 'unaffected'}] Added Description GitPython before 3.1.59 omits --separate-git-dir from unsafe_git_clone_options, allowing attackers to create arbitrary git directories outside the intended clone destination. Attackers can pass a separate_git_dir parameter to Repo.clone_from() or Repo.clone() to redirect repository metadata to an attacker-controlled filesystem path, enabling arbitrary directory creation and potential hook execution. Added CVSS V4.0 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-22 Added Reference https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-8mcc-hrx5-hvxc Added Reference https://www.vulncheck.com/advisories/gitpython-before-path-traversal-via-separate-git-dir